Shaun Usher curates and compiles letters from famous mothers, from Betty Davis and Sylvia Plath to Louisa May Alcott and Martha Gellhorn.

The beloved art of letter writing is unveiled through his best-selling series of books, Letters That Made History.

From pen to paper, with recipient and sender, envelope and stamp, famous letter writers send their own messages. Whether on important or trivial matters, in an official or deeply personal tone, thoughts, messages, and greetings await being "locked" inside a piece of paper to be read.