For those who have ever read any of his previous books, such as “Dinosaurs Without Bones” or “The Evolution Underground,” who have ever attended his lectures, or heard an interview with him, Prof. Anthony J. Martin needs no introduction. Renowned for his pioneering work in ichnology, as well as for bringing the very subject of trace fossils to the attention of the wider audience of amateur naturalists, his knowledge of the subject is as expansive as his enthusiasm for it is delightfully ebullient.