Content created by Professor Deborah Lipstadt in conjunction with Maureen MacLaughlin and Dan Leshem. CLAIM: Anne Frank's diary is a forgery written by her father, Otto Frank, for monetary gain. One denier, calling her diary a "novel," wonders how a teenage girl could have written that "maturely."

RESPONSE: Physical testing of the notebooks, papers, and ink Anne used found that they are all authentic to the time. Furthermore, the handwriting and printing in the diary is the same as that in other writings known to have been penned by Anne Frank.