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Jim Harbaugh is relentless, not only in improving football teams, but keeping a record of his latest upward arc.

Harbaugh has produced a second book with award-winning photographer David Turnley, entitled "Rise Again." He tweeted about it today.

Turnley has earned a Pulitzer Prize, produced two World Press Photos of the Year, and garnered the Robert Capa Award for Courage, as a former war photographer. He collaborated with Harbaugh on a book documenting the coach's first season in Ann Arbor, entitled: "Enthusiasm Unknown To Mankind."

Turnley shot more than 70,000 photos to eventually cull down to a 306-page book, for which Harbaugh authored some 16 pages at the beginning. Proceeds from that book went to help fund Michigan's future weight room project.

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