The Leading Edge is a gateway publication, introducing new geophysical theory, instrumentation, and established practices to scientists in a wide range of geoscience disciplines. Most material is presented in a semitechnical manner that minimizes mathematical theory and emphasizes practical applications. TLE also serves as SEG's publication venue for official society business. TLE's regular features include at least four subject area specific departments with articles on key technological aspects of applied geophysics. Each issue also includes a special section devoted to a particular area of technology, especially new techniques or methods that seem likely to have a major impact in the near future on the working routine of most practicing geophysicists.