Introduction This book is intended to give readers the tools to start designing 3-D seismic surveys. The substantial experiences of the authors in designing and acquiring land 3-D seismic surveys make this a practical book. Readers are expected to have a general working knowledge of 2-D seismic data acquisition, processing, and interpretation. Some 3-D experience is helpful but not necessary to understand this material. Practical exercises are included to facilitate understanding of the subject matter. Throughout this book, an attempt has been made to provide data examples in both metric and imperial units. The imperial examples are shown in italics and are not necessarily a straight conversion from the metric examples, but rather are parameter values that are in common usage. Some geophysicists may want to enhance their knowledge of 3-D design by reading papers concerning their particular special interests. A reference list and a collection of other recommended reading are provided at the end of the book.