Here we have one of the standard books in the world of scheme programming, known and recommended in computer science departments around the world. Tough, dry, authoratative; I am about a third of the way through my first reading of it, and I know that I will have another go in a few months' time. And maybe another go after that. For example, chapter three, 'Going Further' ambles steadily through serious recursion then hits us with continuations and CPS. Great fun.
Ernestly recommended if you like scheme, or if you are chasing a CompSci degree.