Thomas Preusser
Thomas Preusser asked Dave Levitan:

Hi Dave - Looks like your latest book is doing well. I was wondering if you might share your authoring journey a bit. Specifically I noticed there are 3 editions to the latest book - and the prior book Scientific American Brasil, n 140 is an interesting mystery to me? Thanks.

Dave Levitan Thanks Thomas -- the editions are just sort of a mistake, really. The publication date changed before the book came out, and apparently that generated a second "edition" on here, even though there isn't one. The other is just an e-book edition, so, all the same thing really! The Scientific American book is, I believe, just a collection of stories from the magazine; I've written for them a number of times over the years. Thanks again for your interest!

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