Olsson introduces algebraic spaces and stacks to readers already familiar with basic algebraic geometry. Rather than striving for an exhaustive treatment, he walks readers through enough of the theory to pursue research in areas that use algebraic spaces and stacks, and to proceed on to more advances topics through other sources. The many exercises at the end of each chapter range from routine verifications to more challenging further developments of the theory. Annotation ©2016 Ringgold, Inc., Portland, OR (protoview.com)