Trade Secrets contains over 3,000 hints, tips, and shortcuts on every subject under the sun—from cleaning kettles to fixing your car—gleaned from professionals developed or discovered during their long working lives. Each series of tips is divided into subjects, and there is a comprehensive cross-referenced index.
This is an interesting book (I will admit I could not find the exact details of the version I have) but its close enough and I guess the content is the same. Its basically a book full of little gems of wisdom broken down in a series of sub groups so you have an group set by activity - say gardeners, then it would be further divided down to a common set of tasks for example seedlings - with each group then having a number of helpful handy comment and suggestions. As for the actual advice or suggestions imparted - that varies, from common sense, to facts I already knew (but its always reassuring to see them re-affiremd) to down right surprising. There seems to be something for everyone here - I would say though you have to skim through a lot to find the interesting stuff.