For those who follow the scholastic ciriculum of MIT, Structure and Interpretation of Computer Programs has been the introductory subject for it’s computer science department since 1981. Both the course and it’s accompanying textbook have had a profound impact on the subject of computer science.

For those not fortunate enough to have attended the school, you can view the book’s entire text online and download twenty two videos of both Hal Abelson and Gerald Jay Sussman teaching the course. I can’t stress how valuable this type of open education is, and highly recommend checking out these resources.