The theory of Frobenius splittings has made a significant impact in the study of the geometry of flag varieties and representation theory. This book systematically develops the theory and covers all its major developments. It's concise, efficient exposition unfolds from basic introductory material on Frobenius splittings-definitions, properties and examples-to cutting edge research, making it an excellent resource for mathematicians and graduate students in algebraic geometry and representation theory of algebraic groups.