The subject "Engineering Geology and Rock Mechanics' has been recently been introduced in several universities at the undergraduate level. In some universities this subject is also known as "Geo-mechanics". The book will be of immense help for the undergraduate students. However, the scope of the course content has been deal with in such a way that the postgraduate students can also find many useful matters in their interest. "Engineering Geology and Rock Mechanics may be said to present the qualitative approach to Geology and a brief introduction of engineering geology has been given. This will help the readers in proper understanding of the subject.