Are you looking at the first edition or the second? The first is very dense early on. The second was rewritten to avoid that. Take a look at the second edition

Are you looking at the first edition or the second? The first is very dense early on. The second was rewritten to avoid that. Take a look at the second edition instead: I'm confident you'll find it qualitatively very different. https://htdp.org/2018-01-06/Book/ https://htdp.org/2018-01-06/Book/ [Disclaimer: co-author, so I'm biased.]