Acknowledgements

I had the good fortune to be able to establish a summer 1992 collaboration with Jim Black of IBM in Dallas who, besides bringing fresh eyes to the whole undertaking, wrote the first version of chapter 8 on dip moveout, made significant contributions to the other chapters, and organized the raw data.

In this book, as in my previous (and later) books, I owe a great deal to the many students at the Stanford Exploration Project. The local computing environment from my previous book is still a benefit, and for this I thank Stew Levin, Dave Hale, and Richard Ottolini. In preparing this book I am specially indebted to Joe Dellinger for his development of the intermediate graphics language vplot that I used for all the figures. I am grateful to Kamal Al-Yahya for converting my thinking from the troff typesetting language to L^ATEX. Bill Harlan offered helpful suggestions. Steve Cole adapted vplot to Postscript and X. Dave Nichols introduced our multivendor environment. Joel M. Schroeder and Matthias Schwab converted from cake to gmake. Bob Clapp expanded Ratfor for Fortran 90. Martin Karrenbach got us started with CD-ROMs. Sergey Fomel upgraded the Latex version to ``2e'' and he implemented the basic changes taking us from CD-ROM to the WWW, a process which continues to this day in year 2000.

Jon Claerbout  
Stanford University  
December 26, 2000