This book is designed for scientists and engineers who want practical information to plan, manage, write, and review geologic and hydrologic projects and reports. It provides step-by-step methods to prepare more timely, readable, and technically accurate reports. Detailed guidelines are provided to prepare the different subj ects included in this book. Source references, project proposals, and checklists are included to assist authors. The use of the techniques described in this book will result in less time spent in report writ­ ing, editing, rewriting, and review, which will save time and money. This book is the result of nearly 50 years of experience in program and project development in the field of hydrogeology. The two main authors P. E. LaMoreaux and Fakhry Assaad who submitted both the idea and the major subjects of the book, have been closely associated during this period with the Geological Survey of Egypt, the General Desert Development Organization in Egypt, the u. S. Geological Survey (USGS), the Geological Survey of Alabama, the University of Alabama, and in a great variety of consulting projects in different States of America and over the world. It is based on experience from the assignment and supervision of many professionals with a great variety of academic training and experience.