This text stresses the basics of 68000 assembly Language (ASL) while also covering the more recent members of the 68000 family. It provides "explanations by analogy", explaining unfamiliar concepts through comparison with related topics. This book introduces assembly language and covers the design of assembly language programmes. It provides an introduction to the 68000 ASL and examines the more complex instructions such as LINK and UNLK. The examples and problems have been class tested, and technical staff of Motorola have worked with the author on the production of this book.