Tarot or oracle decks with scenes on both sides of the cards, and don't have 'backs' as such.
A Poet's Tarot is a women-oriented 74 card deck from 1986. It has black and white non-traditional illustrations on one side, and on the back of each card is a linked poem in purple and silver (instead of a universal design). The suits of Sticks, Bowls, Knives and Pens are numbered from 1 to 13 - there's no distinction made for the court cards.
The Butterfly Affirmations deck has 44 simple, double-sided cards with photographic illustrations of different butterflies on the face, and short uplifting affirmations on the reverse. It's a pretty and easy to use oracle and advice set.
The Cook's Tarot: Dining with the Major Arcana is a set of 22 double-sided, large cards that beautifully combine tarot with food. Each card sets the scene for dinner with the major arcana's character, and provides a symbolically linked recipe as well. Now available in a full 78-card edition.
The Golden Dawn Enochian Skrying Tarot is an innovative, non-traditional Tarot of 89 cards that contains two decks in one - the Enochian Watchtower Tarot and the Western Tattvas Tarot. The cards are intended for skrying, divination, and magickal work.
The Namaste Blessing & Divination Cards are a set of 44 double-sided cards, with Toni Carmine Salerno's original art on one side and an uplifting message of guidance and blessing on the reverse.
The Orchid Healing Cards is a deck of 132 cards corresponding to vibrational healing essences created from 83 different orchids. The front of the cards has an original photograph of the orchid, while the back describes its healing energies. Designed for use by therapists, the deck can also be used as an oracle, for meditation, or for energy healing.
The Tarot Learning Cards are a flash card style deck, with graphic design icons on the front, and text information on the back. The back info includes a theme, keywords, and additional associations for both upright and reversed meanings. Designed as a study guide for the beginning reader. Now updated in a second edition.
The Tarot of the Secret Forest is a unique deck with fantasy forest scenes on both sides of the cards. The faces of the cards have the scene in colour, while the back shows it in black and white.
The Vice-Versa Tarot is a unusual and creative double-sided 156-card exploration of tarot. The front of the cards have the normal 78 Rider-Waite based tarot scenes, while the backs of the cards show the reverse view, or a different perspective on the scene.
The Wisdom for Healing Cards is a set of 50 cards from medical intuitive, Caroline Myss, designed to improve health on a physical, emotional and spiritual level. The cards have gentle art on the front, and corresponding advice on the back.
The Wisdom of the Woods is a 30-card Celtic tree oracle. The double-sided cards have an image of the tree on the front, and meanings, keywords and associations on the backs. The deck is read in a casting of nine cards with the included Celtic Wheel board.
The Zolar Astrological Tarot is a strange double-sided deck of 56 cards that touts itself as 'four decks in one'. The minor arcana (and regular playing card symbols) are on one side, the majors and astrological symbols on the other side.