But I do not want to write a book. Arcpy is an excellent time, but I would think the book would not be just about arcpy, I would hope it would incorporate all the gis py tools, such as geo alchemy, geodjango, spatial lite, etc..., and then additional modules of use in conjunction to arcpy.
A person or persons that would be excellent choices for writing a book on python:
Mark Janikas
Ghislain Prince
Lauren Scott
Ashley Pengelly
David Wynne
All ESRI employees (That I know of)
All on the GP team
All exciting to listen to at the UC
All mentors of mine for GP
A cookbook would be a good thing to have, too.