This book is a collection of short stories of a future earth. The stories revolve around the main theme of the human conscious being down-loaded into a hard drive ( sometimes with legs, hence the term bug in the title ) to live on in various fashions. In time some of these bugs can be down-loaded back into a human body. But, with more people getting down-loaded ( then shelved in hard drive form ) and less bodies available for stored "people" the stories start to take convoluted paths. 5 out of the 15 short stories where worth reading, the rest should have been left out. All in all there are many other short story collections out there well worth reading. Larry Niven is the first to come to mind. Try one of his books before you buy this one