James Sexton

‘Who would have guessed that the person who gives the best advice about marriage was the guy responsible for getting you out of yours?’ – New York Times'Brutally honest and wildly useful' - Steven BartlettJames J. Sexton has spent over two decades in the trenches of high-stakes divorce – watching good people tear each other apart over bad communication, broken trust and problems that could’ve been solved early on. If they’d only known what to look for. How Not to F*ck Up Your Marriage is what he wishes every couple had read before it was too late. This book is an early warning system, a no-punches-pulled guide to the small mistakes, blind spots, and lazy habits that quietly destroy relationships – and the real work it takes to stay in love for the long haul. From emotional drift to financial landmines to social-media sabotaging, from sex to silence to the granola box that finally breaks you, this is a deeply practical, deeply funny guide to protecting your connection, resolving conflict before it escalates and staying close through real life. Whether you’re in a relationship, out of one, or wondering if yours will last, this is the relationship book written by someone who has seen how they end – and who, despite it all, still believes in love.

This 2006 textbook provides a concise introduction to the key concepts and tools of statistical mechanics. It also covers advanced topics such as non-relativistic quantum field theory and numerical methods. After introducing classical analytical techniques, such as cluster expansion and Landau theory, the authors present important numerical methods with applications to magnetic systems, Lennard-Jones fluids and biophysics. Quantum statistical mechanics is discussed in detail and applied to Bose-Einstein condensation and topics in astrophysics and cosmology. In order to describe emergent phenomena in interacting quantum systems, canonical non-relativistic quantum field theory is introduced and then reformulated in terms of Feynman integrals. Combining the authors' many years' experience of teaching courses in this area, this textbook is ideal for advanced undergraduate and graduate students in physics, chemistry and mathematics.