SICP is available for free: https://web.mit.edu/6.001/6.037/sicp.pdf https://web.mit.edu/6.001/6.037/sicp.pdf If you want to get it elsewhere, the full info is

SICP is available for free: https://web.mit.edu/6.001/6.037/sicp.pdf https://web.mit.edu/6.001/6.037/sicp.pdf If you want to get it elsewhere, the full info is: Structure and interpretation of computer programs by Hal Abelson and Jerry Sussman (MIT Press. 1984. ISBN 0-262-01077-1).