Which kind of informational text is a book written by a historian about The Life and times of George Washington biography a self-help book how to book a memoir

A book written by a historian about the life and times of George Washington would be classified as a biography. This type of informational text focuses on presenting a detailed account of a person's life, achievements, and impact on history.

The kind of informational text that the book "The Life and Times of George Washington" would fall under is a biography.