"The 12 Volt Doctor's Alternator Book" by Edgar J. Beyn is a paperback book published in 1986 by Weems & Plath, Incorporated. The book, with a hardcover format and illustrated by the author, focuses on transportation and is written in English. It provides valuable information and insights on alternators in a 12-volt system, making it a helpful resource for automotive enthusiasts and professionals alike. The book measures 9.7 inches in length, 7.1 inches in width, and 0.8 inches in height, weighing 25.6 ounces.