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Exactly. Scheme is attractive for educational purposes because of its simplicity and the relatively large amount of accessible literature available.
One can select among these books according to one's tastes and interests:
* SICP
* The Little Schemer series (The Little Schemer, The Seasoned Schemer, The Reasoned Schemer, The Little Typer, The Little Prover)
* Lisp in Small Pieces