I agree, if I had to keep only one gardening book this would be the one. I'm just a home gardener but the information on soil improvement is worth the price of the book alone. I am constantly referencing it and it's an enjoyable read. Definitely a must for the gardening library.
I find this book very easy reading. Mr Coleman writes as he speaks, in easy to understand terms. He does an excellent job of presenting the information you need without being redundant. I sat down and read the book in one sitting.
This book is a very good introduction to becoming a market gardener. I have not read the revised edition, so am only commenting on the origional printing.
Mr. Coleman explains in detail a good system for setting up a market garden and different marketing techniques. It is a very inspirational and exciting book to read and a lot of people got into farming because of it.
I think that once you read this book and decide you want to become an organic vegetable farmer first work on a farm for a season. That will give you a more realistic perspective on the things he has to say. Some of the claims Mr. Coleman makes are a little optomistic in my opinion. You will not be able to do as much or make as much as he says you can, but he still gives a very good design for how to do it well. Perhaps in the revised version he has updated his numbers to more closely reflect reality.