This volume provides a self-contained introduction to the theory of tensor products of Banach spaces. It is written for graduate students in analysis or for researchers in other fields who wish to become acquainted with this area. The only prerequisites are a basic knowledge of functional analysis and measure theory. Features of particular interest include: - A full treatment of the Grothendieck theory of tensor norms; - Coverage of the Chevet-Saphar norms and their duals, along with the associated classes of nuclear, integral and summing operators; - Chapters on the approximation property and the Radon-Nikodym property; - Topics such as the Bochner and Pettis integrals, the principle of local reflexivity and the Grothendieck inequality placed in a natural setting; - The classes of operators generated by a tensor norm and connections with the theory of operator ideals. Each chapter is accompanied by worked examples and a set of exercises, and two appendices provide essential material on summability in Banach spaces and properties of spaces of measures that may be new to the beginner.