Matter & Interactions offers a modern curriculum for introductory physics (calculus-based). It is modern in that it presents physics the way practicing physicists think about their discipline and integrates 20th Century physics and computational physics. The text emphasizes that there are only a small number of fundamental principles that underlie the behavior of matter, and that by using these powerful principles, it is possible to construct models that can explain and predict a wide variety of physical phenomena. Matter & Interactions is available as a single volume hardcover text and also two paperback volumes. Vol. 1, Modern Mechanics focuses on the atomic structure of matter and the interactions between material objects. Vol. 2, Electric & Magnetic Interactions emphasizes the concepts of electric and magnetic fields and extends the study of the atomic structure of matter to include the role of electrons. Matter and Interactions, 3rd Edition is available in 2 Volumes: ISBN 978-0-470-50345-4 Matter and Interactions, 3rd Edition, Matter & Interactions Volume 1 3e. ISBN 978-0-470-50346-1 Matter and Interactions, 3rd Edition, Matter & Interactions Volume 2 3e.