Books needed for driving instructor training

My driving school told me at the beginning of my driving instructor training that I will not need any additional materials to learn besides those introduced during the course. But when I was in the middle of the training I thought that it would be nice to know a little more than the average student. That is why I decided to buy some books concerned with this subject. I would like to tell you something about them. All those books have almost the same content. They are focused on different aspects of being a driving instructor. I must admit that I got a lot of useful information from those books that I would not be delivered during the course. In one of the books, for example I found an illustrated table explaining different ways of acting during threat presented on the road. Illustrations along with descriptions made me more confident and understand the subject completely. Of course it would be possible to pass the driving instructor training without any supplements (as a matter of facts most of the people do not use any at all) but along with the books the training seems to be a little bit more interesting. That is why if you are really passionate about your future job I can recommend you buying some books.