The Valuable Book 

The The Valuable Book 2 promotional cards are two promotional cards, "Dark-Eyes Illusionist" and "Black Illusion Ritual", included with copies of The Valuable Book 2.

The The Valuable Book 3 promotional cards are two promotional cards, "Rocket Warrior" and "Nightmare's Steelcage", and four Character Cards, "Joey", "Kaiba", "Pegasus", and "Yugi", included with copies of The Valuable Book 3.

The The Valuable Book 4 promotional cards are two promotional cards, "Viser Des" and "Legendary Fiend", included with copies of The Valuable Book 4.