Let me just say this:
make them aware what we, physical therapists are and what we really do
Exactly. I wish you would have done this.

You have quite clearly used this website to promote selling your books to different people. Most are on pages designated to Physiotherapists who are able to make a professional knowledge-based decision on whether your books are worth buying or not. But in this case you are offering books to an amateur without any information on our profession and the risks involved in learning form theory only or applying techniques and exercises that could potentially be harmful.

Kind regards,
Fyzzio