Like most short story anthologies, the quality of these 12 stories varies greatly. I must admit I'd never heard of Harry Harrison before and found this book in a charity bin in Tesco's.
The stories range from mildly interesting to completely pointless. Only one of them sticks in my mind - I Always Do What Teddy Says - which is a very cool idea, however the rest of the stories I couldn't even give you the gist of, and this is only a few days after reading them.
Galactic Dreams, like most dreams, gets forgotten quickly.