Here are some of the books that we use to teach.
Fossil Sharks of the Chesapeake Bay Region by Bretton W. Kent
ISBN-13: 978-1881620013
ISBN-10: 1881620018
You can find this book on Amazon.
Handbook of Paleoichthyology, Volume 3D: Chondrichthyes V
ISBN; 978-3-89937-148-2
You can find get this book from the Natural History Book Service (NHBS).
Sharks of the World: A Fully Illustrated Guide
ISBN-13: 978-0957394605
ISBN-10: 0957394608
You can find this book on Amazon.