Philip K Dick's short stories are some of his very best work. As a writer whose talent was in crafting imaginative stories filled with mend-bending ideas rather than developing emotionally complicated characters, the format complements his strengths - many of the entries in the five-volume collection are masterpieces of distilled paranoia, surprise and suspense.
This volume was one of my first Philip K Dick books as a teenager (I believe I may have read Do Androids Dream of Electric Sheep first), and it immediately captivated me.
Highlights of this volume include:
The Hanging Stranger - A man finds a dead body hanging from a lamppost in the middle of town, but the other residents seem strangely oblivious
The Golden Man - A government agency charged with tracking down mutants faces a unique challenge
The Last of the Masters - Members of a global anarchist militia investigate rumours of a surviving microstate
War Veteran - An old man claims to be a time-travelling veteran of interplanetary war
Shell Game - A group of alleged paranoiacs shipwrecked on an alien planet attempt to determine their own sanity