Enter into the world of the UMMO. This is a glimpse of this fascinating world 14 lightyears away. They have been studying us for over 50 years and have been exchanging culture and technical information. Based on the letters they have had dictated to typists and even eventually typed themselves, the knowledge that has passed is no where short of amazing! What is contained in this book are just the highlights of various subjects. There is much more yet to be discovered and revealed!