Pathfinder Divine Spell Deck (2nd Ed) - Rules of Play says:

Call down the glory of the gods with Pathfinder Spell Cards! This must-have accessory for divine spellcasters contains more than 150 spell reference cards, covering every divine spell in the Pathfinder Core Rulebook, giving players immediate access to key game details without the need to slow down play to flip through a giant book. Players can easily arrange and plan their spells within moments, and a quick scan of the cards presents a caster's tactical options at a glance. As always, go with the gods, but always go with Pathfinder Spell Cards!