UCLA Professor Emeritus, Daniel Walker Howe sits in his home library in Sherman Oaks, CA, on Wednesday, April 9, 2008 where he collected data and wrote his book titled "What Hath God Wrought" which was awarded a Pulitzer for nonfiction earlier this week. Howe's history book analyzes the transformation of America from 1815 to 1848 and is already being used as a source on t.v. shows airing subjects from that era.
(John Lazar/L.A. Daily News Staff Photographer)