Other pages in the notebooks, while they may not contain potentially classified information, could still be considered government property under the Presidential Records Act because they pertain to official business Biden conducted as vice president, the person familiar with the investigation said.
The notebooks include a mix of handwritten notes from Biden on various topics, both personal and official, this person said. On some pages Biden wrote down things about his family or his life unrelated to public office, they said. On other pages, they said he memorialized in writing some of his experiences or thoughts as vice president at the time.
The number of notebooks Biden kept is large, according to the person familiar with the investigation, but they did not know the precise number.