This manual covers updates to the Mac Operating System 8.5 interface, as well as new features, such as QuickTime VR, the Cyberdog Internet tool suite, QuickDRAW GX, powerTalk and AppleScript. It is designed to help users customize the control panel to make Mac OS 8.5 act the way they want it to. It explains how to install the new version before moving on to describe its features, from file management to managing memory.