This book is an introductory text on seismology intended for advanced undergraduates and graduate students. The book, which emphasizes fundamental concepts and basic mathematical developments, is intended to be ‘student-friendly’.

As soon as the second edition of Principles of Soil Chemistry appeared, it was sought after by many scholars, students, professionals, and scientists interested in the chemistry of soils. It was chosen as the textbook at the University of Georgia for teaching the senior-level undergraduate and graduate course in soil chemistry. It has been used as a textbook in soil chemistry at the University of California, Davis, and other universities in the United States. Because of its simple language and style, which avoid making problems more complex than needed without sacrificing scientific standards, the book is particularly appealing as a textbook in many universities overseas. The first edition of Principles of Soil Chemistry was translated in Indonesian and published by the University of Gadjah Mada Press, Yogyakarta, under the title Dasar-Dasar Kimia Tanah, which soon sold out and is out of press. I was invited to teach Soil Chemistry and Soil Genesis courses for a semester in 1996 at the University of Andalas, Padang, Sumatra, Indonesia, and in 1995 at the Universidad Nacional del Sur, Bahia Blanca, Argentina, where my first and then the second edition were adopted as the main textbook for these courses.

Stratigraphy is one of the most demanding, fundamental, and interesting of geologic disciplines. It tries to reconstruct history with a few basic principles, requires both careful observation and wide-ranging imagination, and involves many individually fascinating subdisciplines. Yet, as the quotation above shows, this is not how it appears to many people. Stratigraphy has a poor image because it is sometimes presented only as a way of classifying and organizing strata with “codes.”

Principles of Structural Geology is designed to be a concise introduction to the deformation of the earth’s crust, encompassing the wide-ranging subject matter of introductory courses in structural geology. Three principal aspects of structural geology are emphasized:
1.    The basic principles of natural rock deformation are presented in Part II, Principles of Deformation (Chapters 3, 4, and 5), including stress, strain, and the physical processes of elastic, plastic, and brittle deformation of rock.