Substance D - otherwise known as Death - is the most dangerous drug ever to find its way on to the black market. It destroys the links between the brain's two hemispheres, leading first to disorentation and then to complete and irreversible brain damage. Bob Arctor, undercover narcotics agent, is trying to find a lead to the source of supply, but to pass as an addict he must become a user, and soon, without knowing what is happening to him, he is as dependent as any of the addicts he is monitoring.

When Roger and Virginia Lindhal enroll their son Gregg in Mrs. Alt's Los Padres Valley School in the mountains of Southern California, their marriage is already in deep trouble. Then the Lindhals meet Chic and Liz Bonner, whose two sons also board at Mrs. Alt's school. The meeting is a catalyst for a complicated series of emotions and traumas, set against the backdrop of suburban Los Angeles in the early fifties.

What is VALIS? This question is at the heart of Philip K. Dick's groundbreaking novel, the first book in his defining trilogy. When a beam of pink light begins giving a schizophrenic man named Horselover Fat (who just might also be known as Philip K. Dick) visions of an alternate Earth where the Roman Empire still reigns, he must decide whether he is crazy or whether a godlike entity is showing him the true nature of the world.

Milton Lumky territory is both an area of the western United States and a psychic terrain: the world and worldview of the traveling salesman. The story takes place in Boise, Idaho, with some extraordinary long-distance driving sequences in which our hero (young Bruce Stevens) drives from Boise to San Francisco, to Reno, to Pocatello, to Seattle, and back to Boise in search of a good deal on some wholesale typewriters.

Set in San Francisco in 1956, The Broken Bubble traces the ups and downs and ins and outs of four characters who are not quite sure of the lives they’re living. Jim Briskin, local radio DJ, his ex-wife Pat, the young married couple Art and Rachel Emmanual – all are acutely observed and sympathetically portrayed. Briskin is suspended from his job for refusing to read a particularly repellant ad, while Art foolishly gets mixed up in a group of absurd would-be revolutionaries. As they all get entangled and not quite disentangled with each other, it becomes apparent they are seeking only – in typical Dick fashion – to live more or less happily - if not ever after, then at least for a while. Modest as it may seem, it is an ambition very difficult to achieve.

Al Miller is a self-proclaimed nobody, a used-car salesman with a lot full of junkers. His elderly landlord, Jim Fergessen, has decided to retire and has just cashed in on his property, which includes the lot that Al rents next to Fergessen's garage. Chris Harman is a record-company owner who has relied on Fergessen's for years to fix his Cadillac. When he hears about Jim Fergessen's sudden retirement fund, he tells him about a new realty development that Harman swears is a surefire path to easy wealth.

Years ago, Earth and Titan fought a war and Earth lost. The planet was irradiated and most of the surviving population is sterile. The few survivors play an intricate and unending game called Bluff at the behest of the sluglike aliens who rule the planet. At stake in the game are two very important commodities: land and spouses. Pete Garden just lost his wife and Berkeley, California, but he has a plan to win them back. That is, if he isn’t derailed by aliens, psychic traitors, or his new wife.

Following an inexplicable urge, Ted Barton returns to his idyllic Virginia hometown for a vacation, but when he gets there, he is shocked to discover that the town has utterly changed. The stores and houses are all different and he doesn't recognize anybody. The mystery deepens when he checks the town's historical records...and reads that he died nearly twenty years earlier.

On Mars, the harsh climate could make any colonist turn to drugs to escape a dead-end existence. Especially when the drug is Can-D, which transports its users into the idyllic world of a Barbie-esque character named Perky Pat. When the mysterious Palmer Eldritch arrives with a new drug called Chew-Z, he offers a more addictive experience, one that might bring the user closer to God. But in a world where everyone is tripping, no promises can be taken at face value.

Jack Isidore doesn’t see the world like most people. According to his brother-in-law, Charley, he’s a crap artist, obsessed with his own bizarre theories and ideas, which he fanatically records in his many notebooks. He is so grossly unequipped for real life that his sister and brother-in-law feel compelled to rescue him from it. But while Fay and Charley Hume put on a happy face for the world, they prove to be just as sealed off from reality, in thrall to obsessions that are slightly more acceptable than Jack’s but a great deal uglier.

Glen Runciter runs a lucrative business - deploying his teams of anti-psychics to corporate clients who want privacy and security from psychic spies. But when he and his top team are ambushed by a rival, he is gravely injured and placed in "half-life," a dreamlike state of suspended animation. Soon, though, the surviving members of the team begin experiencing some strange phenomena, such as Runciter's face appearing on coins and the world seeming to move backward in time.

Jason Taverner - world-famous talk show host and man-about-town - wakes up one day to find that no one knows who he is - including the vast databases of the totalitarian government. And in a society where lack of identification is a crime, Taverner has no choice but to go on the run with a host of shady characters, including crooked cops and dealers of alien drugs. But do they know more than they are letting on? And just how can a person's identity be erased overnight?

What happens after the bombs drop? This is the troubling question Philip K. Dick addresses with Dr. Bloodmoney, or How We Got Along After the Bomb. It is the story of a world reeling from the effects of nuclear annihilation and fallout, a world where mutated humans and animals are the norm, and the scattered survivors take comfort from a disc jockey endlessly circling the globe in a broken-down satellite.

Earth is trapped in the crossfire of an unwinnable war between two alien civilizations. Its leader is perpetually on the verge of death. And on top of that, a new drug has just entered circulation - a drug that haphazardly sends its users traveling through time. In an attempt to escape his doomed marriage, Dr. Eric Sweetscent becomes caught up in all of it. But he has questions: Is Earth on the right side of the war? Is he supposed to heal Earth’s leader or keep him sick? And can he change the harrowing future that the drug has shown him?

Delmak-O is a dangerous planet. Though there are only 14 citizens, no one can trust anyone else and death can strike at any moment. The planet is vast and largely unexplored, populated mostly by gelatinous cube-shaped beings that give cryptic advice in the form of anagrams. Deities can be spoken to directly via a series of prayer amplifiers and transmitters, but they may not be happy about it. And the mysterious building in the distance draws all the colonists to it, but when they get there each sees a different motto on the front.