This textbook will provide the fundamentals of optomechanics. Starting from the basics, this textbook will lead you through the opto-mechanical design process, discussing materials selection, principles of kinematic design, as well as mounting of windows, individual lenses, and multiple lenses. Techniques for mounting prisms, mirror performance, and design and mounting of mirrors will be included. Written by the two top scientists in the field, this stand-alone, student-friendly textbook has been course-tested and will include homework problems as well as a solutions manual for adopting professors.