This book is controversial. Many undergraduate students despise it because it assumes a high level of fluency in calculus and continuum mechanics. However, professors love it because it derives the physics of folding and faulting from first principles.
Knowing the difference between a "kink band" and a "crenulation cleavage" is vital. This glossary (often included with the AGI Data Sheets) is the legal dictionary of our field. structural geology books
Structural Geology: Fundamentals and Modern Developments by S.K. Ghosh This book is controversial
by Stephen Marshak and Gautam Mitra: The go-to manual for learning stereographic projections, cross-section construction, and map interpretation. structural geology books
by David D. Pollard and Raymond C. Fletcher : A rigorous, physically-based text that focuses on the mechanics of rock deformation.