Earlier quoted context omitted.
Abelson and Sussman expect you to either be a bachelor's degree candidate with a lot of time to work on this I think that's to be expected for a university course textbook.
No doubt, it wasn't intended as a negative. But for the independent student, stating what may seem obvious can be critically necessary. Compared to both O'Reilly titles and plenty of assigned course readings, that wasn't entirely clear to me until I had a few problem sets done. For example, Norvig's review makes it sound like it can be read lightly. Maybe only if your name is Norvig. I don't know.
Concepts, Techniques, and Models of Computer Programming (Van Roy
& Haridi) is seen by some as the modern-day successor to Abelson &
Sussman. It is a tour through the big ideas of programming,
covering a wider range than Abelson & Sussman while being perhaps
easier to read and follow. It uses a language, Oz, that is not
widely known but serves as a basis for learning other languages.
[1] http://news.ycombinator.com/item?id=2848027