Logo for the Macintosh teaches the art of programming to first time programmers. It begins with Turtle Geometry, a series of exercises involving both Logo programming and geometric concepts. Later chapters illustrate more advanced topics, such as the famous DOCTOR program with its simulated psychotherapist and an INSTANT program that enables parents and teachers to create a programming environment for preschool children. A chapter is devoted to the topic of object-oriented programming, a key feature of the Object Logo implementation of Logo.Logo for the Macintosh is written primarily for use with Object Logo, a powerful implementation of the Logo language that greatly enhances its speed, capabilities, and overall usability in education and beyond. The book may also be used with other versions of Logo for the Macintosh.Harold Abelson is Professor of Computer Science at the Massachusetts Institute of Technology. He directed the first implementation of Logo for the Apple II, which made Logo widely available on personal computers beginning in 1981. Amanda Abelson, a high-school student, runs a nationwide Internet based multiuser simulation game.