Book that gives an overview about extraterrestrials

This is a compendium that gives you an overview about aliens who are in contact with people on planet Earth. You will understand the various connections between the races.
Where are they coming from? Look inside the book and you will feel an urge to know more. Why are they here? Who is in contact with space beings? Are there people who know more? Yes, yes, yes.

Just take a glimpse at:
An Overview of Extraterrestrial Races: Who is Who in the Greatest Game of History.

http://www.trafford.com/05-1271

http://www.amazon.com/gp/product/1412063604/qid=1135914818/sr=8-1/ref=sr_8_xs_ap_i1_xgl14/102-4148086-9856947?n=507846&s=books&v=glance