I bought the fifth edition of his book How to Grow More Vegetables. (I think there is an eighth edition by now.) I found a lot of useful information in his book, and I liked his approach. I adapted some of the methods to my own style and approach. If you are using hand tools, you don't have to leave row space for tractors or mules, so you can optimize the space used.
Here are some pics of the bed (approx. 4' x 13') Caleb and I just prepped.
Last fall it looked like this.
This spring, after the kale had bolted and the cilantro had gone to seed, and after various and sundry weeds had grown, it looked like this.
I added a little compost. (Wish I had more.)
I chopped up the dirt clods with a hoe as I incorporated the compost. She's ready to go.
(If you're wondering about the item on the right--I left the cilantro for the seeds. I kind of tied the splayed bundle of stalks together with a piece of pantyhose. I staked it with a metal rod that was designed to hold a Japanese beetle trap. An old CD is dangling from it. The light reflecting from the CD was supposed to scare the rabbits out of the carrots last fall.)
All is not sweetness and light, though. I broke my spading fork! After Caleb was done, I went around the perimeter a little with the fork. Then I decided to go for the root of a cow itch vine (trumpet creeper) in the path by the bed. The soil was very dry and hard outside the area that had been in cultivation. I always instruct Caleb to be easy on the tools. (That's what John Jeavons said!). Wouldn't you know the person doing the preaching about being easy on the tools is the one who broke the tine of the fork!