The subject of this book is the study of the complex pattern of links among the memory sources of dreams. This study is performed through a linguistic and partially automatic analysis of verbal data, including dream reports and associations with the report items. The approach is interdisciplinary: it regards the fields of psychology, linguistics, computer science, mathematics (graph theory), history of psychology, literature, and motion pictures. The method is scientifically rigorous: literature and motion pictures are specifically considered for their efficacy in providing interesting examples. The method described is efficacious and not difficult to apply. It allows obtaining plausible explanations, through the application of heuristic rules, for significant aspects of a dream. This book is different from other books on the subject of dreaming in its specific perspective: it is focused on the study of the links among dream sources. The interdisciplinary approach taken in this book hopes to prove a useful and enlightening addition to published literature on this topic.