The images in this book have forewarned you: you may find things in your soil that, upon closer examination, will scare the daylights out of you. (In general we advise against putting anything under an electron microscope. At that level, all life has teeth!) The point is, when you get a good look at some of the microarthropods present in soil, you may never want to put your hands in the soil again. Sometimes ignorance really is bliss; however, in this instance a little knowledge is not going to hurt you and will actually help you be a better gardener. Just remember, you put your hands in the soil before you knew what was there and never got hurt.
You will want to repeat the following procedures with soils from each of your gardens and lawn areas, and even around specific trees and shrubs. We have done this dozens of times in our own yards, and what we find never fails to astonish us.
Start by digging a hole in the soil at issue, about 12 inches (30 centimeters) square. Use a spade or trowel — it doesn't matter, and measurements don't have to be exact. Put all the soil you dig up onto a tarp or in a box so you can then sift through it, looking for the bigger animals you might find in the soil: worms, beetles, insect larvae — any living organism you can see with the naked eye and pick up without having to resort to tweezers. Keep track of what you are finding.
None of us are trained at identifying all the organisms in our soils, and frankly the variety of them is so great as to be beyond the scope of this book. Do your best in making identifications. Seek help from others. In time you will become sufficiently proficient for the purpose. This is new stuff, and just being exposed to it will make the learning experience easier. It didn't take us very long, and it won't take you long to become familiar with soil food web organisms.