B. Simpson 
Geological Maps [PDF ebook] 

Designed for use by students studying geological maps for the first time and principally concerned with the sheet-like bodies of sedimentary and igneous rocks. Although it is an introductory volume, the student can use it with the minimum of supervision and teaching because, contrary to other books, the approach adopted is the actual presentation of the process of solution of geological maps rather than the presentation of geological map exercises. The book is intended for Geology students in schools and technical colleges, and for first-year geology and civil engineering courses.