For those asking about how to dig in and learn, I learned D3 basics from the Data Visualization section of https://freecodecamp.org https://freecodecamp.org. I

For those asking about how to dig in and learn, I learned D3 basics from the Data Visualization section of https://freecodecamp.org https://freecodecamp.org. I thought it was going to be very hard. I was pleasantly surprised that the basics aren't actually that difficult at all.