As someone who has been building and repairing vehicles for longer than I care to admit, I have at last realised that I must learn how to deal with vehicles post 1996.
"How to use Automotive Diagnostic scanners" takes you through the whole learning process beginning with why we need computer controlled engines at all, the early types of on board diagnostics, leading to the industry standard of ODB11. A chapter on the various products on offer and benefits of each. A chapter on the use of these tools as a diagnose to what might actually be wrong. A great book, well written, clearly illustrated. When you've finished it, put it on the shelf -you will need it again. There should be no secondhand copies.