"Steve Jobs" by Walter Isaacson will be in stores Monday.
Isaacson interviewed Jobs more than 40 times, including just a few weeks before his death, and no subject was said to be off limits.
The book portrays Jobs as a skeptic, giving up religion because he was troubled by starving children and calling some executives at Apple "corrupt."
It also delves into Jobs' decision to delay pancreatic cancer surgery. Instead, he tried herbal remedies, and even consulted a psychic before finally having surgery nine months later.