This text offers a comprehensive, thorough presentation of modern physics. It is distinguished from other texts in the field by its clear and accessible presentation. Sandin introduces each new topic with relevant examples and uses numerous analogies throughout to clarify difficult concepts. There are over 250 in-text worked examples, and over 1100 end-of-chapter problems. In addition to the standard topics of modern physics, the text includes material on cosmology, the Big Bang theory, and grand unified theories.