I wholeheartedly concur about The Little Schemer, though well into adulthood when first exposed to it. It works so well due to combining a Q&A format with a res

I wholeheartedly concur about The Little Schemer, though well into adulthood when first exposed to it. It works so well due to combining a Q&A format with a respectful "tone" that never talks down to the student-reader. The authors' subtle sense of humor contributes too. To be sure this article isn't in the same league at all. Great teachers are scarce no doubt because few are gifted with the requisite raw talent. It implies you're right, it's hard to produce top-quality written teaching material, after all excellent examples are uncommon, even vanishingly rare.