Geological maps show how the underlying geological structure is expressed on the surface of the world. For this reason, having a solid understanding of the fundamentals of structural geology is essential to accurately interpret the relationships shown on a geological map. This book is intended for the use of geologists, petroleum engineers, and other science students who studying structural geology for the first time. It is not in any way an exhaustive treatise on geological maps but is meant to serve as an introduction to their interpretation and solution. The book is designed, as far as possible, to be read without tutorial help. Worked examples are given to assist with the solution of the exercises. Emphasis is placed throughout on developing the skill of three-dimensional visualization so important to the geologist l. The approach is designed to help the student work with little or no supervision: each new topic is simply explained and illustrated by text figures, and exercises are set on succeeding problem maps. This book is an essential resource for students, researchers, and professionals seeking a deeper understanding of structural geology, crafted by a leader in the field.