Thank you for creating and open sourcing this. I have a question if I may.

If a person has the goal of getting into a field like computer vision or machine learning, would they be able to build useful things right away if they completed this book?

Definitely! If you scroll down a bit, you will see in Chapter 10 that I've included some fun applications, things like 2D/3D geometry, linear regression, recommender systems, and even a quick intro to PageRank. I wanted to show how these ideas connect to real-world problems, so it's not just theory. Hope you find it interesting.