DIDIK Lenticular Guide Book
Sorry, but the book is out of print. You may, however, wish to order the "Didik's History and Guide Book to Lenticular Images on CD-ROM". Please see below for link. Thank you for your interest.
DIDIK/Vari-Vue Stereo 3-D Pages
**"Lenticular" is a trade name of Vari-Vue to describe linear lenses and was coined by a patent in 1936 covering lenticular technology which led to the formal formation of Vari-Vue in 1948.