|The Invisible Book of Invisibility|
- "An essential read for anyone intrigued by invisibility."
The Invisible Book of Invisibility was a textbook about the power of invisibility. The book its self is completely invisible, making it difficult to find. Copies of the book can be found in Flourish and Blotts.
The manager of Flourish and Blotts told Harry Potter in 1993, at some point in the past, Flourish and Blotts ordered a stock of the book, only to have all two-hundred of them disappear, and no one was ever able to find them, costing the store a fortune. Only the stock of The Monster Book of Monsters was considered more troublesome. The Invisible Book of Invisibility most probably teaches invisibility spells as well as theory.