Product Description: Four new titles in this best-selling series examine the evidence—or lack thereof—for these supernatural legends. Reviews of the first six books called the series "solid stuff for teaching high-interest critical thinking," (Booklist) and said, "These books will spark classroom debate," (School Library Journal)...read more

Product Description: Learn about the strange designs found in farm fields with explanations of possible alien connections, hoaxes, and famous crop circle sites. A full description of the mystery, possible explanations, and remaining questions are all explored...read more

Product Description: The first shapes found in crop fields were circles. Since then, people have discovered more complex designs. Where do these designs come from? Are they messages from alien visitors, or are they nothing more than pranks created by humans? This title will explore the history of crop circles and look into whether or not some could be of alien origin...read more

Product Description: Book by Kallen, Stuart A.

Product Description: Some things in the world remain mysterious. These things are called phenomenon. They puzzle and fascinate us. Crop circles are one of these mysterious things.

Describes the phenomenon of crop circles, including speculations as to who or what causes them.

Introduces the reader to stories about strange lights, disapearances, unexplained sightings, and mysterious wreckages.