Important things 4.

All right, now "Pocket Ref (2nd Ed.)" by Thomas J Glover. 542 pages, Published 1997, mine since 1997. This is a small book, but has much more factual information than most other books many times its size. A simple way to describe this book is an almanac, only without any of the weather/planting/presidents/'famous personages' stuff in. Instead you get (by a random flip of pages): maximum floor joist spans, formulas for electricity, world wide area codes by location, firewood/fuel comparisons, steel wire/sheet steel gauges, weights and properties of materials (from ABS [plastic] to zinc,cast). Clearly, this book is very valuable. I have thumbed through mine many times, and in doing this entry, I found out there is a newer 3rd edition, that is available from the publisher here. Not only are time-sensitive items updated, there are over 200 new pages of information! I will be getting the new version shortly. This book is a must-have book to me.