Geoff Farmer & David Redfern 
Dictionary of Geography [PDF ebook] 

Geography as a subject covers a very wide range of topics, and the concepts are constantly being updated and revised. Dictionary if Geography , designed to aid understanding of a sometimes complex field, is an A-Z guide to key geographical terms. Each entry begins with a clear, one-sentence definition and is then developed in line with the relative importance of the concept covered, often through the use of worked examples and illustrations. Entries are carefully cross-referenced.