The exceptional quality of previous editions has been built upon to make the twelfth edition of Atkins' Physical Chemistry even more closely suited to the needs of both lecturers and students. The writing style has been adapted in collaboration with current students of physical chemistry in order to retain clarity but match the way you read. The new edition is now available as an enhanced e-book, which offers a richer, more dynamic experience than either a print textbook or a flat e-book. It does this by incorporating digital enhancements that are carefully curated and thoughtfully inserted at meaningful points to enhance the learning experience. In addition, it offers formative auto-graded assessment materials to provide students with regular opportunities to test their understanding. Digital enhancements introduced for the new edition include dynamic graphs, which you can interact with to explore how the manipulation of variables affects the results of the graphs, self-check questions at the end of every Topic, video content from physical chemists, and video tutorials to accompany each Focus, which dig deeper into the key equations introduced. There is also a new foundational prologue entitled 'Energy: A First Look', which summarizes key concepts that are best kept in mindright from the beginning. The coupling of the broad coverage of the subject with a structure and use of pedagogy that is even more innovative will ensure Atkins' Physical Chemistry remains the textbook of choice for studying physical chemistry.