Hidden in Plain Sight is the accompanying book for your marked deck.

The book covers absolutely every aspect of marked decks, such as marking your own decks, various marking systems, combining marked decks with other techniques and loads of tricks you can perform with a marked deck.

Many of the card tricks and techniques provided in this book take little to no skill to perform, yet the effects that are made possible rival that of complex card sleight tricks.  Plus you can hand the deck of cards out for inspection too!

If you only ever buy one book on marked cards, then I personally recommend that you buy this one.