Microfossils are an abundant component of the sedimentary rock record. Their analysis can reveal not only the environments in which the rocks were deposited, but also their age. When combined, the spatial and temporal distribution patterns of microfossils offer enormous utility for archaeological and forensic investigations. Their presence can act as a geological ‘fingerprint’ and the tiniest fragment of material, such as a broken Iron Age potsherd, can contain a microfossil signature that reveals the geographical source of the materials under investigation. This book explores how microfossils are employed as tools to interpret human society and habitation throughout history. Examples include microfossil evidence associated with Palaeolithic human occupation at Boxgrove in Sussex, alongside investigations into human-induced landscape change during the Holocene. Further examples include the use of microfossils to provenance the source materials of Iron Age ceramics, Roman mosaics and Minoan pottery, in addition to their application to help solve modern murder cases, highlighting the diverse applications of microfossils to improving our understanding of human history.