Wow that was quick! Thanks for the pointers! That first article is a help already and I’ll go through the examples you mentioned - thanks!
For the Chapter 3 Wrap Up section, I feel like I wasn’t armed with enough information to be able to get started on that stuff. Animation, for example, feels worlds away from just moving an icon around. I think a greater explanation of tilesets and how they work would be really useful! I’ve spent the past hour going through the code for the book and it all makes much more sense now. I only wish I didn’t have to go to the answers to be able to get here.
I’m really enjoying to book though and cracking on through it. Thanks again for the quick and thorough response!