Card Trivia:Book of Moon
- This is one of the cover cards of the Japanese version of Pharaonic Guardian.
- This card has four counterparts: "Book of Taiyou", "Book of Life", "Book of Eclipse", and "Book of Lunar Eclipse".
- This card also has a "Speed Spell" counterpart: "Speed Spell - Book of Moon".
- This card has a more liberal anime-exclusive counterpart: "Book of Flip"
- This card is the opposite counterpart of "Book of Taiyou".
- Both cards are named after the opposing celestial bodies representing the daytime and nighttime; "Taiyou's" TCG name is the Japanese word for "sun".
- This card can flip a face-up monster on the field into face-down Defense Position, while "Book of Taiyou" can flip a face-down monster on the field into face-up Attack Position.
- The German print of this card in Legendary Collection 3: Yugi's World Mega Pack accidentally has the effect of "Creature Swap" printed on it.
