Nothing about this book is normal.
The author is a trained hypnotist, and the book is written to create an experience you don't normally get from words on a page. You will feel the effect most profoundly before the end of the first novel, God's Debris, and in the short story Lucky House.
The middle piece, The Religion War, has a more traditional story structure and serves as a vehicle for Adams' predictions. That novel is set in 2040, but you might see some of its predictions taking form already. When judging the predictions, consider that it was published in 2004.
Years after writing the original novels, Adams became nationally recognized for controversial yet accurate predictions in the domains of politics and technology.
If you know anyone who has read God's Debris, they probably had a hard time describing it. Some say it is the best book they have ever read, which is a big claim. That won't be true for everyone. But you will probably find this adventure thoroughly original; God's Debris: The Complete Works is guaranteed to make your brain spin around in your skull.
You will never forget how it made you feel.