Walter Issacson leaving BBG, says he's busy with "big writing project" The cover of the biography of Steve Jobs by Walter Isaacson. (Reuters) Walter Issacson, who penned a best-selling book about the late Apple cofounder Steve Jobs, resigned Friday as the chairman of the Broadcasting Board of Governors to work on another book. "I'm taking on another big writing project, so I won't be able to give the BBG the time it needs and deserves," he said in a resignation letter sent earlier Friday to the agency, which oversees U.S. international broadcasting, including the Voice of America and Radio Free Europe. Issacson, who also heads the Aspen Institute, was rumored to be among the candidates the White House had considered tapping for director of the Domestic Policy Council - a job that ultimately went to Cecilia Munoz, who had been working in the West Wing spearheading the White House's Hispanic outreach. His book, "Steve Jobs," has sold an estimated 1.36 million copies in the United States alone, according to Nielsen BookScan. The White House must now nominate Issacson's replacement to the eight-member bipartisan board.