Mel Bay's Contemporary Slide Guitar - An Instruction Manuel.  1976 Mel Bay Publications.  80 pages.  Written by Arvid Burman Smith, Jr, and Barbara McClintock Koehler.

Vintage 1976 book is in excellent condition.  There is a stain on the upper right corner where there was an old price sticker.

Teaching slide guitar in various open tunings and importantly, teaches how to get into these open tunings.  Great.