Explores famous accounts of extraordinary encounters with aliens. Includes scientific studies into unbelievable events.

Cryptozoology: Could Unexplained Creatures Be Real? Readers will examine the history of Cryptozoology, Bigfoot, Yeti, the Loch Ness Monster and more before deciding for themselves! Table of contents, fun facts, a glossary, and an index are included. Aligned to Common Core Standards and correlated to state standards. Checkerboard Library is an imprint of Abdo Publishing, a division of ABDO.

UFOs: Are Alien Aircraft Overhead? Readers will examine the history of UFOs, Roswell, alien abduction, Area 51and more before deciding for themselves! Table of contents, fun facts, a glossary, and an index are included. Aligned to Common Core Standards and correlated to state standards. Checkerboard Library is an imprint of Abdo Publishing, a division of ABDO.