Model Railroading with John Allen, Expanded Hardcover Edition
The original Model Railroading with John Allen was a soft cover, 144-page book published in 1981 by Kalmbach Books. Its contents traced the development of John's famous HO Gorre & Daphetid layouts, and his HOn3 Devil's Gulch & Helengon with track plans and sketches, plus black and white and color photos.
Even if you have a copy of the original, you will want a copy of this Expanded Edition of Model Railroading with John Allen for its sturdy hard cover wrapped in a beautiful dust jacket, 160 pages containing the original content plus added reproductions of advertising photos that John took for Pacific Fast Mail, and a complete list of John's photos and articles compiled by Jeffrey L. Witt -- all finely reproduced on archival quality paper.
Whether or not you are familiar with John Allen's work, you are in for a great read.