Stratigraphy is a cornerstone of the Earth sciences.The study of layered rocks, especially their age determination and correlation, which are integral parts of stratigraphy, are key to fields as diverse as geoarchaeology and tectonics. In the Anglophile history of geology, in the early 1800s, the untutored English surveyor William Smith was the first practical stratigrapher, constructing a geological map of England based on his own applied stratigraphy. Smith has, thus, been seen as the first industrial stratigrapher, and practical applications of stratigraphy have since been essential to most of the extractive industries from mining to petroleum. Indeed, gasoline is in your automobile because of a tremendous use of applied stratigraphy in oil exploration, especially during the latter half of the twentieth century. Applied stratigraphy, thus, is a subject of broad interest to Earth scientists. This book is a collection of 16 articles divided into four sections.The first section, a single chapter by editor Koutsoukos, presents a 10- page history of stratigraphic concepts and is intended to serve as background to the rest of the book. Part II consists of six articles on chronostratigraphy, ecostratigraphy, and biostratigraphy.The third part, which is the bulk of the book, reviews diverse stratigraphicapplications, including cyclo-stratigraphy, chemostratigraphy, sequence stratigraphy, and the use of ichnofossils in stratigraphy. The last part of the book is a single chapter on quantitative microfossil biostratigraphy.