“Teach Yourself Scheme in Fixnum Days”, written by Dorai Sitaram, is an introduction to the Scheme programming language. It is intended as a quick-start guide, something a novice can use to get a non-trivial working knowledge of the language, before moving on to more comprehensive and in-depth texts.
Free Scheme Books
“Simply Scheme: Introducing Computer Science 2nd Edition” by Brian Harvey and Matthew Wright. Read it online or download in pdf format. This lively introduction to computer science and computer programming in Scheme is for non-computer science majors with a strong interest in the subject and for computer science majors who lack prior programming experience.
Read “The Scheme Programming Language 4th Edition” online for free. The author, R. Kent Dybvig, is Professor of Computer Science at Indiana University and principal developer of Chez Scheme.