Jonathan HillmanJonathan Hillman is an Honorary Associate in the School of Mathematics and Statistics at the University of Sydney. Although an algebraist by nature, he works primarily in low-dimensional topology, and has authored books on links in S3, 2-knots, geomeric 4-manifolds and PD3-complexes. His previous books with Cambridge University Press include '2-knots and their Groups' (1989) and 'The Algebraic Characterization of Geometric 4-Manifolds' (1994). Read More Read Less