yeah i got this one from the library, just to get started
i bought a heavy duty john deere garden tractor (1977 model 300) that has a tiller but i couldn't get it working in time to plant the garden, part of the reason it was delayed... I borrowed my neighbors hand held tiller but it didn't to a great job of breaking the sod and a nearby tree had a ton of shallow roots that messed me up.
my plan for now is to till aggressively in the fall and really break the sod, then pile all my mulched leaves on there, or at least a good 2-3 inch cover. I still have to do some resarch because i learned oak leaves might have toxic tannins in them? Also we have a bunch of turkey-poop-mixed-straw... either way come spring i'll cover it with plastic and let the weed seeds germinate in early spring and lightly cultivate it come planting time.
hopefully 2-3 years of that regimen will get things rolling.