The Wordless Book is a Christian evangelistic book. Evidence points to it being invented by the famous London Baptist preacher Charles Haddon Spurgeon, in a message given on January 11, 1866[2] to several hundred orphans regarding Psalm 51:7 "Wash me, and I shall be whiter than snow."[3] It is called a "book", as it is usually represented with pages, although it can be shown on a single page or banner.
The book consists of several blocks of pure color that, in sequence, represent a nonverbal catechism about basic Christian teachings for the instruction of children, the illiterate, or people of different cultures.[4] The presentation of the book is meant to be a verbal experience, however, providing the "reader" a visual cue to expound Christian doctrine extemporaneously or in impromptu situations.