Fosco Loregian is a postdoctoral researcher at Tallinn University of Technology, Estonia. His research is mainly focused on category theory and its applications in algebra, geometry and logic.
'At just above 300 pages, this book achieves a great deal in a limited space. …The presentation is lively and the author's enthusiasm for exposition comes across vividly, making the book a pleasant read.' Nicola Gambino, MathSciNet