"I believe it is best when the author introduces their book. For example, Mehdi Eshagh states, “My main goal was that the book should be simple, complete, didactic, and pedagogic and suitable for researchers in different fields.” Eshagh continues, “In my opinion, showing how satellite gravimetry data, which are collected on platforms far from the earth's surface, are related to the gravity field and geophysical phenomena inside the earth is an interesting subject.” As the secondary title states, the book presents a mathematical foundation for the global application of these data....

This relatively small-format (9 × 6 in) 486-page volume has more than 180 color figures, some postage-stamp size and others half-page size. Some of the figures are rendered well, and others are not. I would have preferred if there were more full-page color figures; however, black-and-white images are numerous and adequate. Hopefully, these shortcomings will be addressed in the next edition." --Society of Exploration Geophysicists (SEG)