Ubuntu Guide published a comprehensive Beginners Guide for Ubuntu 12.04 Precise Pangolin
Getting Started with Ubuntu 12.04 is a comprehensive beginners guide for the Ubuntu operating system. It is written under an open source license and is free for you to download, read, modify and share. The manual will help you become familiar with everyday tasks such as surfing the web, listening to music and scanning documents.A Comprehensive Beginners Guide for Ubuntu 12.04 Precise Pangolin