juweek
@juweek.bsky.social
I use code to make diagrams #dataviz #data #creativecode #p5js
gourmetdata.substack.com
gourmetdata.substack.com
A subtle data problem I keep running into isn’t bad data; it’s categories.
Categories feel authoritative because they come from somewhere upstream, but it's important to remember that data is always recorded from somewhere, and human context matters
Categories feel authoritative because they come from somewhere upstream, but it's important to remember that data is always recorded from somewhere, and human context matters
January 13, 2026 at 2:50 PM
A subtle data problem I keep running into isn’t bad data; it’s categories.
Categories feel authoritative because they come from somewhere upstream, but it's important to remember that data is always recorded from somewhere, and human context matters
Categories feel authoritative because they come from somewhere upstream, but it's important to remember that data is always recorded from somewhere, and human context matters
Which nutrients do you get from a regular cucumber?
When you break down cucumber into its nutrients, you get this chart as a result. It shows how much of our daily recommended value is met for each vitamin everytime we eat a cucumber.
You can see vitamin K's presence pretty easily
When you break down cucumber into its nutrients, you get this chart as a result. It shows how much of our daily recommended value is met for each vitamin everytime we eat a cucumber.
You can see vitamin K's presence pretty easily
January 7, 2026 at 2:50 PM
Which nutrients do you get from a regular cucumber?
When you break down cucumber into its nutrients, you get this chart as a result. It shows how much of our daily recommended value is met for each vitamin everytime we eat a cucumber.
You can see vitamin K's presence pretty easily
When you break down cucumber into its nutrients, you get this chart as a result. It shows how much of our daily recommended value is met for each vitamin everytime we eat a cucumber.
You can see vitamin K's presence pretty easily
Gentle reminder that pivoting is part of the job of a data analyst.
A common mistake I make is assuming the data will just… cooperate.
Sometimes it does. But sometimes the data is just not good for answering your question. Whether that means I find a new dataset or asking a new question, I pivot
A common mistake I make is assuming the data will just… cooperate.
Sometimes it does. But sometimes the data is just not good for answering your question. Whether that means I find a new dataset or asking a new question, I pivot
January 6, 2026 at 4:08 PM
Gentle reminder that pivoting is part of the job of a data analyst.
A common mistake I make is assuming the data will just… cooperate.
Sometimes it does. But sometimes the data is just not good for answering your question. Whether that means I find a new dataset or asking a new question, I pivot
A common mistake I make is assuming the data will just… cooperate.
Sometimes it does. But sometimes the data is just not good for answering your question. Whether that means I find a new dataset or asking a new question, I pivot
alarming trend aside, this is such an effective way to convey this information.
not only engaging, but does a decent job of compressing a huge amount of information (daily temps) to a single object (the curves)
not only engaging, but does a decent job of compressing a huge amount of information (daily temps) to a single object (the curves)
2025 goes down as the ~3rd-warmest year on record (based on ERA5).
Like in 2024, every single day this past year was warmer than the average of even the most recent reference period (1991-2020).
Like in 2024, every single day this past year was warmer than the average of even the most recent reference period (1991-2020).
January 5, 2026 at 5:48 PM
alarming trend aside, this is such an effective way to convey this information.
not only engaging, but does a decent job of compressing a huge amount of information (daily temps) to a single object (the curves)
not only engaging, but does a decent job of compressing a huge amount of information (daily temps) to a single object (the curves)
According to other USDA FoodData database, cucumbers are 95% water.
I represented it as a sankey because...well, because sankeys are cool
I represented it as a sankey because...well, because sankeys are cool
January 5, 2026 at 2:01 PM
According to other USDA FoodData database, cucumbers are 95% water.
I represented it as a sankey because...well, because sankeys are cool
I represented it as a sankey because...well, because sankeys are cool
We at the JA team wish you all a very happy new year. We are excited to continue our work doing what we do best: building a more data-forward society.
We have big things coming up!
We have big things coming up!
January 1, 2026 at 5:02 PM
We at the JA team wish you all a very happy new year. We are excited to continue our work doing what we do best: building a more data-forward society.
We have big things coming up!
We have big things coming up!
Look at how wicked this pictorial map is! Zoom in
I personally am mixed on illustration in maps; it helps make finding important info easier (eg Statue of Liberty for NY) but I can't help but get distracted when I'm looking at them.
Either way, this beast is called 'The Geologic Time Spiral'
I personally am mixed on illustration in maps; it helps make finding important info easier (eg Statue of Liberty for NY) but I can't help but get distracted when I'm looking at them.
Either way, this beast is called 'The Geologic Time Spiral'
November 1, 2025 at 1:34 PM
Look at how wicked this pictorial map is! Zoom in
I personally am mixed on illustration in maps; it helps make finding important info easier (eg Statue of Liberty for NY) but I can't help but get distracted when I'm looking at them.
Either way, this beast is called 'The Geologic Time Spiral'
I personally am mixed on illustration in maps; it helps make finding important info easier (eg Statue of Liberty for NY) but I can't help but get distracted when I'm looking at them.
Either way, this beast is called 'The Geologic Time Spiral'
When you do pretty much anything on the internet, you send a request through the internet to a remote data center. Roughly 80–90% of global internet traffic passes through data centers at some stage.
Still, imagining that 10% of power demand being for data centers is bonkers
Still, imagining that 10% of power demand being for data centers is bonkers
October 31, 2025 at 1:23 PM
When you do pretty much anything on the internet, you send a request through the internet to a remote data center. Roughly 80–90% of global internet traffic passes through data centers at some stage.
Still, imagining that 10% of power demand being for data centers is bonkers
Still, imagining that 10% of power demand being for data centers is bonkers
What determines the cost of your internet?
Terrain: harsher environments means its harder/costlier to build
Density: the more dense, the more users can share the bill
Tech Infrastructure: fewer cables/towers mean longer, pricier data routes
Competition: more options usually means cheaper costs
Terrain: harsher environments means its harder/costlier to build
Density: the more dense, the more users can share the bill
Tech Infrastructure: fewer cables/towers mean longer, pricier data routes
Competition: more options usually means cheaper costs
October 30, 2025 at 1:09 PM
What determines the cost of your internet?
Terrain: harsher environments means its harder/costlier to build
Density: the more dense, the more users can share the bill
Tech Infrastructure: fewer cables/towers mean longer, pricier data routes
Competition: more options usually means cheaper costs
Terrain: harsher environments means its harder/costlier to build
Density: the more dense, the more users can share the bill
Tech Infrastructure: fewer cables/towers mean longer, pricier data routes
Competition: more options usually means cheaper costs
A look at all the months the US has had a recession. Purple are recessions, blue are growth.
What I like most about this graph is the clear change in trends. whether it was because the us's economy got stronger, or if the measurement got more gray...
What I like most about this graph is the clear change in trends. whether it was because the us's economy got stronger, or if the measurement got more gray...
October 29, 2025 at 1:50 PM
A look at all the months the US has had a recession. Purple are recessions, blue are growth.
What I like most about this graph is the clear change in trends. whether it was because the us's economy got stronger, or if the measurement got more gray...
What I like most about this graph is the clear change in trends. whether it was because the us's economy got stronger, or if the measurement got more gray...
This chart looks at ingredients from over 100k recipes, and lists them out in order of popularity. Oils, salt, and pepper were taken out.
Not surprised to see onions/garlic in the top 5, but I think butter's/egg's popularities are cuz this probably lists out baking recipes too
Not surprised to see onions/garlic in the top 5, but I think butter's/egg's popularities are cuz this probably lists out baking recipes too
October 18, 2025 at 1:03 PM
This chart looks at ingredients from over 100k recipes, and lists them out in order of popularity. Oils, salt, and pepper were taken out.
Not surprised to see onions/garlic in the top 5, but I think butter's/egg's popularities are cuz this probably lists out baking recipes too
Not surprised to see onions/garlic in the top 5, but I think butter's/egg's popularities are cuz this probably lists out baking recipes too
This chart is one of my favorites of all time, but it takes time to interpret.
It's from a Bloomberg article looking at how the world's diets have changed over time. TLDR is that our food diversity has decreased. This chart looks at three specific examples in China, South Korea, and the Maldives.
It's from a Bloomberg article looking at how the world's diets have changed over time. TLDR is that our food diversity has decreased. This chart looks at three specific examples in China, South Korea, and the Maldives.
October 16, 2025 at 1:03 PM
This chart is one of my favorites of all time, but it takes time to interpret.
It's from a Bloomberg article looking at how the world's diets have changed over time. TLDR is that our food diversity has decreased. This chart looks at three specific examples in China, South Korea, and the Maldives.
It's from a Bloomberg article looking at how the world's diets have changed over time. TLDR is that our food diversity has decreased. This chart looks at three specific examples in China, South Korea, and the Maldives.
Such an interesting piece from Our World in Data - most food is transported by boat.
I had always assumed that transport was a big part of the food system's carbon footprint, but apparently its only like 5% of emissions
I had always assumed that transport was a big part of the food system's carbon footprint, but apparently its only like 5% of emissions
October 15, 2025 at 1:29 PM
Such an interesting piece from Our World in Data - most food is transported by boat.
I had always assumed that transport was a big part of the food system's carbon footprint, but apparently its only like 5% of emissions
I had always assumed that transport was a big part of the food system's carbon footprint, but apparently its only like 5% of emissions
the ultimate goal is to create a pokédex; something digital that can help people understand the world around them. idk what everyone else wants to do, but that's my goal
October 14, 2025 at 1:21 PM
the ultimate goal is to create a pokédex; something digital that can help people understand the world around them. idk what everyone else wants to do, but that's my goal
feels like a bunch of people are already in the matrix. everyone has their content ecosystem to the point that they have different realities
October 13, 2025 at 1:14 PM
feels like a bunch of people are already in the matrix. everyone has their content ecosystem to the point that they have different realities
creating a tool that lets you customize charts quickly
been helpful for me personally, but that's cuz i love a well-designed chart. hoping to share it more widely soon
been helpful for me personally, but that's cuz i love a well-designed chart. hoping to share it more widely soon
February 21, 2025 at 7:18 PM
creating a tool that lets you customize charts quickly
been helpful for me personally, but that's cuz i love a well-designed chart. hoping to share it more widely soon
been helpful for me personally, but that's cuz i love a well-designed chart. hoping to share it more widely soon
building out the foundation of a youtube video analyzer, trying to do some basic NLP (it's mostly useless)
happy with the basics and gonna iterate on the design, but i must admit this project is a great speedrun on many things backend-related
happy with the basics and gonna iterate on the design, but i must admit this project is a great speedrun on many things backend-related
February 10, 2025 at 5:29 PM
building out the foundation of a youtube video analyzer, trying to do some basic NLP (it's mostly useless)
happy with the basics and gonna iterate on the design, but i must admit this project is a great speedrun on many things backend-related
happy with the basics and gonna iterate on the design, but i must admit this project is a great speedrun on many things backend-related
now that code is easy to create, some muscles that seem important:
- understanding what people need
- fun interaction design
- backend scaffolding
- speed
- understanding what people need
- fun interaction design
- backend scaffolding
- speed
February 9, 2025 at 3:00 PM
now that code is easy to create, some muscles that seem important:
- understanding what people need
- fun interaction design
- backend scaffolding
- speed
- understanding what people need
- fun interaction design
- backend scaffolding
- speed
one thing that's underrated is how fun it is to use your own product, and how annoying it is when it doesn't pass the vibe check
February 8, 2025 at 3:00 PM
one thing that's underrated is how fun it is to use your own product, and how annoying it is when it doesn't pass the vibe check
my current side project is a food scanner, and thinking of your market advantage is an interesting thought exercise. my current approach is focusing on the visuals
February 7, 2025 at 2:01 PM
my current side project is a food scanner, and thinking of your market advantage is an interesting thought exercise. my current approach is focusing on the visuals
in the spirit of education, here's a quick thread on how i built a basic nutrition classifier in python
it helped me identify foods with a high enough protein-to-fat ratio for my diet.
it helped me identify foods with a high enough protein-to-fat ratio for my diet.
February 6, 2025 at 5:00 PM
in the spirit of education, here's a quick thread on how i built a basic nutrition classifier in python
it helped me identify foods with a high enough protein-to-fat ratio for my diet.
it helped me identify foods with a high enough protein-to-fat ratio for my diet.
my current jam is gamifying experiences, and I've been thinking up quick ideas to code
here's a currency converter for my visual folks out there
here's a currency converter for my visual folks out there
February 5, 2025 at 2:50 PM
my current jam is gamifying experiences, and I've been thinking up quick ideas to code
here's a currency converter for my visual folks out there
here's a currency converter for my visual folks out there
ever get confused about the different crypto coins? so do I, so I made this chart that compares the market caps and daily transactions of a few ecosystems. this was made with Feb 1 data
it's fun to see how much this looks like a solar system, and how each ecosystem has their own behaviors
it's fun to see how much this looks like a solar system, and how each ecosystem has their own behaviors
February 3, 2025 at 5:48 PM
ever get confused about the different crypto coins? so do I, so I made this chart that compares the market caps and daily transactions of a few ecosystems. this was made with Feb 1 data
it's fun to see how much this looks like a solar system, and how each ecosystem has their own behaviors
it's fun to see how much this looks like a solar system, and how each ecosystem has their own behaviors
something like 10 - 15% of earth is used to feed humans right now, and most of that is for livestock. heres a graph
funny thing is if u think about it, there's an inverse relationship between animal welfare and enviro impacts, eg free range/cage free options require more land
god's funny
funny thing is if u think about it, there's an inverse relationship between animal welfare and enviro impacts, eg free range/cage free options require more land
god's funny
January 31, 2025 at 2:56 PM
something like 10 - 15% of earth is used to feed humans right now, and most of that is for livestock. heres a graph
funny thing is if u think about it, there's an inverse relationship between animal welfare and enviro impacts, eg free range/cage free options require more land
god's funny
funny thing is if u think about it, there's an inverse relationship between animal welfare and enviro impacts, eg free range/cage free options require more land
god's funny
visualizing diff social media sites; size of circle equals revenue, number of particles equals MAU (these are estimates from ~2024)
might write on this but my tldr thoughts
- tiktok is growing crazy rn and has hella space to grow revenue
- meta's market reach is underrated
might write on this but my tldr thoughts
- tiktok is growing crazy rn and has hella space to grow revenue
- meta's market reach is underrated
January 30, 2025 at 3:54 PM
visualizing diff social media sites; size of circle equals revenue, number of particles equals MAU (these are estimates from ~2024)
might write on this but my tldr thoughts
- tiktok is growing crazy rn and has hella space to grow revenue
- meta's market reach is underrated
might write on this but my tldr thoughts
- tiktok is growing crazy rn and has hella space to grow revenue
- meta's market reach is underrated