'... a basic resource for anyone who needs to revisit the basic theory of classical geophysics ... the fundamental geophysical equations are presented here in an informative and intuitive way, which makes this relatively inexpensive book an excellent investment for any geophysicist's library.' Geological Magazine 'Figures are small, simple, and clear, and largely devoted to illustrating dimensions or coordinate systems relating to the equations under discussion ... succeeds as a supplemental work to either a more general introductory textbook (most naturally Lowrie's own Fundamentals of Geophysics, which maintains continuity in mathematical notation) or as an introduction to several more advanced, subject-specific works ... a worthy addition to the shelf (or eBook reader) of serious students of geophysics, or indeed faculty preparing lecture courses on related subjects.' James Wookey, American Mineralogist