My husband bought this book thinking it would be a similar guide to the fabulous Worm Farmer's handbook by Rhonda Sherman. Do not be fooled! This book could not have been written by a human, it must have been computer generated, the language is very hard to understand and we cannot find any information on the author Dr Paul Ken. There are no more details in the book itself. It does not make any sense, here's an example of a sentence - 'In case you're stressed which you're by snare or by law breaker disturbing the regular procedure through gathering the malevolent program castings, don't be!'
You'll find more useful information searching the internet for guides on vermicomposting.