Weedless Gardening Book

Probably better used as a reference book.

A few of the main takeaways are:
-You should almost never till or disturb the soil. If you are going to till the ground, it should be because you're starting your new garden and need to completely destroy what's growing there currently.
-You shouldn't be tilling, because you should be constantly (realistically seasonally and as needed in the summer) adding rich compost to the surface. Over time this will create a much healthier layer of dirt on the surface, which is better than constantly trying to pull nutrients from deeper levels of soil.
-You also shouldn't be stepping on the ground in your garden. Similar to the reason you shouldn't till your garden which is related to how you're creating less desirable conditions below ground (related to water and nutrient absorption and affecting how roots are able to grow). So, you should instead plan your garden ahead of time and make intentional pathways that aren't growing anything.
-Try to maximize your available space. This was primarily related to plants having different growing seasons and durations, and taking advantage of these differences to maximize the yield from your garden.

So, if you need a reference on setting up your garden, check this out.