Joe Paterno had to be prodded by his family to read the grand jury report regarding Jerry Sandusky and did not understand some of its graphic terminology, according to a new book.

The book, "Paterno" by Joe Posnanski, was purchased Friday by The Associated Press in advance of its release next week.

In the book, Posnanski describes a scene at Paterno's home, two days after Sandusky had been charged last November. Paterno's family and a close adviser were trying to explain to the coach that there was a growing sentiment that Paterno must have known for years about the accusations against Sandusky.

The book quotes Paterno as shouting "I'm not omniscient!"

The book also indicates Paterno didn't comprehend all the terms in the report, asking his son what sodomy meant.