This book will provide you with an introduction to Inferno, and everything you need to know about building applications with Limbo. This book focuses on pragmatic aspects of developing Inferno applications with Limbo language. Also included in the text are sections on: access the system features of the program Inferno Limbo build multi-threaded applications with Limbo servers implement user-level file in Limbo network in the Inferno and build network applications in Limbo graphic applications in the Inferno Limbo augmenting the application with modules written in C programming language cryptographic facilities provided by Inferno verification tool for multi-threaded programs simultaneously, such as chess model relevant man pages and module definitions Limbo