SICP is great for me because I get new things from it on repeated readings. The original content is ostensibly suitable for a freshman (provided you are familia

SICP is great for me because I get new things from it on repeated readings. The original content is ostensibly suitable for a freshman (provided you are familiar with the mathematical domain) but the ideas around abstraction and modularity are timeless. If you study and reflect on the content, Sussman and Abelson are truly trying to guide the student to arrive at an appreciation of software engineering concepts. I remember there being a question where after implementing a tree where the leaf nodes are represented as a list, they then pose the question - how much of your code needs to change if you needed to reimplement them as a pair? The point being a pithy lesson in indirection/abstraction - had the student set up named accessors, there would be very little code to change.