To sum up such a colossal work is of course impossible, but if the general idea of life were framed as an individual navigating a map given to them by the circumstances they are born into and the opportunities given, D & G assert that one should become their own cartographer, and I daresay they mean predominantly in the psychic realm, where the process of being holds the greatest potential.
They also frame the human experience as less about static definitions of objects/subjects, and more about process, about becoming, about flow; the production of life and possibilities rather than a static map to navigate within.
Another simplified statement about their work would be to say it is akin to acid, without the drugs.
it is not easy to read, nor is there any one particular interpretation more valid than another. They like to define things as they relate to dynamic process rather than as static meanings inherent in words. To the consternation of many in traditional fields related to philosophy, they even change the meanings of many key tenants as they go along, forcing the reader to re-examine the relationship of the words, their meanings, and how they relate to process.
They move through topics with a fluidity not typically seen in philosophical works, covering a broad range of ideas and interpretations as passed down by some of the greatest thinkers known to man. They approach the book as if it were a record where one is free to drop the needle wherever, and be met with pattern and repetition, but also with development and flow, building and elaborating as it circles.
Here is basic reading on their work:
Anti-Oedipus: Capitalism and Schizophrenia
A simpler attempt to a similar end would be Quantum Psychology by Robert Anton Wilson