Article continues below advertisementThe contents of disgraced financier Jeffrey Epstein's 50th birthday book have been revealed - and it's chock-full of drawings of underage girls.Epstein's birthday book was obtained by Congress and released to the public on September 8.Article continues below advertisementWhat's in Jeffrey Epstein's Birthday Book?Source: House Oversight CommitteeA sketch labeled '2003 a great country' showed young girls massaging Jeffrey Epstein.One of the drawings in the book, which is labeled "1983," shows a man giving balloons to a group of pig-tailed young girls.