Molecular Graphics on the IBM(R) PC Microcomputer is a five-chapter manual that introduces the PC MODEL computer package and provides step-by-step instructions for using it. The PCMODEL is a program to draw and manipulate molecules in graphic form using the IBM(R) PC, PC/XT, PC/AT, PCjr, and true compatible personal computers. This package has a multitude of applications, including the study of conformations of organic molecules and the organization of organic and inorganic crystal lattices.This manual is organized into two sections, namely, the tutorial and reference parts. The first section is highly tutorial in nature because this is where one will need it most, whereas the later section is much less so because one will then be more in need of detailed reference material. This book will be of value to organic chemists and researchers.