https://terradomilho.eu/2018/07/what-you-need-to-find-out-about-the-soil-in-your-vegetable-garden/

Over the years we had many volunteers on our land. One of their main interests was: how do I grow my own food.
For this we are creating a basic online course for growing you own vegetables. The course is very basic and keeps it simple. It provides you with the first knowledge of growing your own food. Using this course as a startup gives you a good basis to go for the more complicated gardening methods like companion planting, sheet mulching etc.
On this website which shows one of the lessons, you can subscribe for the course. At this moment the course is for free.