The disclosure forms reveal Obama lists $1 million to $5 million in Treasury bills and $500,000 to $1 million in Treasury notes among his assets through last year. The bulk of his wealth comes from sales of his books "Dreams From My Father" and "The Audacity of Hope."
Obama also listed his dog "Bo," a Portuguese water dog valued at $1,600, as an asset. The dog was a gift from the late Sen. Edward Kennedy, D-Mas.
Biden doesn't list any assets valued at more than $100,000 on his forms. He did list receiving a first-edition copy of James Joyce's "Anna Livia Plurabelle," autographed by the author and valued at $3,500, given him by Margaret Spanel of Hightstown, N.J.
Both Obama and Biden were given leather briefcases by a friend, Frank Jones of San Fransisco, valued at $300 each.