Basic Useful Fact, Concepts and Ideas in Biogeography consolidates concepts, facts and ideas that are related in one way or the other for purposes of understanding and conceptualization of biogeographical issues. The publication contains key points in the major topics that have been organized into different areas following the alphabetical order for ease of reference. It aims at making the subject interesting and at the same time meaningful. The ideas are further illustrated using simple diagrams to enhance understanding. Some facts are much more elaborated than others. The author has acknowledged authors whose works have helped in coming up with this book under the reference section and hence has not included the names in between the texts as is common with other writers.