What a delightful surprise to find SWITCH ON, SWITCH OFF (Harper Collins) by Melvin Berger that I illustrated, on the clever and inciteful blog ; - )
I did a lot of research for the pictures in this book. Luckily, in Philadelphia I could call on The Franklin Institute Science Museum and Philadelphia Electric Co for help. Particularly challenging was showing how the big generator works. I always understand things better if there are pictures along with text. This book was just the sort of reference I needed, but didn't have.... until I finished the illustrations.
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