Eivind Eriksen is Associate Professor in Mathematics at BI Norwegian Business School. His research interests include noncommutative algebraic geometry, deformation theory, differential structures in algebraic geometry, and representation theory.Olav Arnfinn Laudal is Professor Emeritus in Mathematics at the University of Oslo. He has researched algebraic geometry throughout his career, and is well known for his work in deformation theory. Arvid Siqveland is Professor in Mathematics at the University College of Southeast Norway. His research interests include noncommutative algebraic geometry, deformation theory, algebraic geometry and representation theory.

[Noncommutative Deformation Theory] gives both an introduction to noncommutative deformation theory, and an application of the machinery in mathematical physics. […] The material on noncommutative deformation theory and Massey products is a generalisation and combination of several papers of the authors, culminating in a clean development of a deformation theory of multiple objects in abelian categories. It is nicely explained which kinds of properties one needs to impose on the objects and the categories to mimic the results in commutative deformation theory, such as the existence of a pro-representable hull. The material on mathematical physics is based on work of the second author, and is more recent.- Pieter Belmans, Springer Nature Review, October 2017The book is well written, with many detailed examples, making it ideal for graduate students and mathematicians interested in the subject matter. The reviewer looks forward to future applications and developments in this important subject.-Adam Nyman, Mathematical Reviews, May 2018

• Classical Deformation Theory. Noncommutative Algebras and Simple Modules. Noncommutative Deformation Theory. The Noncommutative Phase Space. A Cosmological Toy Model. Moduli of Endomorphisms of Rank Three.