A. E. Waite
All of the Rider editions up to 1939 were available with a small guide written by A. E. Waite providing an overview of the traditions and history of the cards, texts about interpretations, and extensive descriptions of their symbols. The first version of this guide was published during 1909 and was titled "The Key to the Tarot". A year later, a revised version, "The Pictorial Key to the Tarot", was issued that featured black-and-white plates of all seventy-eight of Smith's cards.