Sure:
Cryptozoology A to Z - A wonderful book for those that are just starting to learn about Cryptozoology to people like me that prefer short blurbs per creature rather than chapters and chapters on the same thing. This book has just enough info on each cryptid that it reports on.
Destination Truth: Memoirs of a Monster Hunter - This is the book Josh Gates wrote about his time filming the TV show Destination Truth. Not an informational book like the first recommendation but it is a fantastic read.
Investigating the Unexplained - Ivan T Sanderson is always a must read at least once. Not only is this book investigating things like cryptids, but many other mysteries that have plagued Earth.
The Beasts That Hide From Man - Another reference-type book like the first reccomendation. It’s a good read, and keeps the attention of people like me that have no attention span.
Monster Hunt: The Guide to Cryptozoology - Another reference-type book complete with a beautiful cover that is like faux-lizard skin and lovely images inside.
Globsters - A personal interest to me, this book dives into the subject of Globsters. Of course, most Globsters are whale blubber, decaying basking sharks, etc, but this book introduced me to a number of unknown Globsters that I had never heard of.
The Field Guide to Lake Monsters, Sea Serpents and Other Mystery Denizens of the Deep - Holy long title. But a very good resource for any people that love those water cryptids.