How can an artist start thinking like a programmer?

I have a friend who's a talented artist that's going through a programmer boot camp right now, and today he posed a question "How can I think like a programmer?"

I decided to answer that programming is like solving a lot of puzzles, so maybe he should try solving logic puzzles murder mysteries or something (there's a board game called Sherlock Holmes Consulting Detective that's good for that), but he could probably use other suggestions.

I'm also curious what other people think, especially if they were an artist that started picking up programming.