The authors thank the following who have kindly given permission for the use of copyrighted material:
Blackwell Publishers and The Association of American Geographers for fig. 7.10.
Elsevier Science for fig. 7.9.
University of California, Los Angeles (UCLA), Department of Geography, for photographs from the Spence Collection, namely: figs. 1.5, 1.8, 1.9, 1.10, 1.11, 1.15, 1.16, 3.2, 3.3, 3.4, 3.7, 3.9, 19.8, 20.7, 20.10, 21.14, 21.15, 22.16, 22.18; and from the Fairchild Collection, Fig. 22.4.
We are also grateful to individual authors and friends, and to various government agencies for freely providing many other figures used in the book. Although every effort has been made to trace and contact copyright holders, we apologize for any apparent negligence. Finally, we thank the many reviewers and cartographers, including Chase Langford of UCLA, who provided generous advice and assistance in the preparation of this book.