Paperback is about 6.5" x 10", published by Vertigo, 1st Printing July 1979, 127 pages. Author Steve Baer combined a grounding in basic solar concepts with practical descriptions of workable solar systems. Book was printed for longevity - text paper is acid-free, pages are sewn in signatures (not glued) in order that book may be opened flat without damage, and cover is printed on double-weight stock plastic-coated for water and stain resistance.