To expand on this from the perspective of a student, I primarily study mathematics but will be pursing a double in math and cs, and I actually enjoy very rigorous (what some people may call dry or intimidating) textbooks in both fields because I am generally quite pedantic. However, that being said, I would love a book like this not necessarily as a main source of the actual information I am learning, but rather as a fun visual aid or activity because I like coloring and actually do it rather often. Further, I think active engagement could provide other kinds of benefits. As the parent comment noted, pictures themselves may not teach you the algorithm in its entirety from scratch, but in interview situations, I can see the possibility of getting tripped up on things that you maybe "kind of" know the answer to, and having vivid diagrams or models in mind that you can jump to (e.g. these pictures) may help with things like recall. I actually find things like this to be immensely helpful in every class, from using mnemonics for memorizing Hiragana, Katakana, and Kanji to breaking down complex proofs of math theorems into discrete memorable steps to give me an intuition for why and how things work, etc. I think this could both be a great supplemental tool for certain kinds of students as well as a very fun book to color in! I will certainly buy one if this idea comes to fruition.