A couple of seminal classics:
Telescope Optics, Evaluation and Design by Harrie Rutten and Martin van Venrooij.
The Dobsonian Telescope - A practical manual for Building Large Aperture Telescopes by David Kriege & Richard Berry.
I already regret putting these up for sale but I am in the process of cleaning out everything I can...
Best offer over $1 each (+ postage) at the end of the week (
next Sunday) gets them.
The odd scuff on the cover, but otherwise sound condition.
http://i858.photobucket.com/albums/a...507_103732.jpg