autography
/ɔːˈtɒgrəfi/Definitions
1. noun
the art or practice of writing one’s own life story, especially in a diary or journal
“She spent years compiling her autobiography and also wrote several books on the subject of autography.”
2. noun
a written account of oneself, especially a biography or autobiography
“The historian spent years studying the subject’s autography, searching for clues to her past.”