“Diagrams are very clear and simple to understand”

Doris McClellan
Delgado Community College

“These chapters are short, but they are very informative …”

Chelsea Smith
The University of North Alabama

“I enjoyed the diagrams depicting systems on earth.”

Christopher King
Frostburg State University

“… clear and timely when discussing the changes over time and so much more.”

Trina Michelle Dorris
Delgado Community College

“The graphics and pictures really helped me under these abstract concepts that aren’t observable”

Turner Kinsey
Frostburg State University

“The summaries at the end of each chapter were also helpful …”

Jessica Boyd
Frostburg State University

“Graphics were interesting, text was easy to follow.”

Garrett Schmelzel
University of Nebraska at Omaha