This is easily the best book we have seen to explain the basics of locking access control. It explains in detail the differences in all the card technologies used today for access control.
The book starts with the all the basics that you need to know about electricity, and teaches you every step of the way. You'll learn everything you need to know to handle everything from closed circuit TV, simple access control, wireless security, and electronic locks. Many of the products we sell are covered in this great book.