This entry in the Fossil Files series casts an intriguing light on a branch of paleontology that seldom receives its due. Along with tallying the various ways prehistoric insect forms and tracks ("trace" fossils) have been preserved sedimentary rock, amber, and tar d major modern sites where they can be found, Linde describes distinctive discoveries, including blood in a mosquito's stomach, 400-million-year-old insect jaws almost too tiny to see, and Meganeuropsis, a griffinfly with a 29-inch wingspan. The specimens visible in the close-up color photos display similar diversity and also reveal how finely detailed insect fossils can be. Sidebar notes expand on this information and add quick comments on insect biology, the history of microscopy, and how to prepare for a career in paleontology. A good choice for broadening an interest in all things stony and boney.