Received Larry Kettelkamp's book Spinning Tops this afternoon and devoured it in about an hour.
Really enjoyed everything about this large-print book of 63 pages -- material, approach, style, and illustrations. My copy came from a school library, and I'm imagining middle school kids as the main target. But that didn't stop me from learning a thing or two, and I loved the way he brought in basic top behaviors and the physical principles behind them.
In fact, Kettlekamp's knack for explaining complex things in simple English is worthy of study in and of itself -- especially for someone like me.