The collection consists of three center-sewn 64-page notebooks-one ruled, one dot grid, and one undated planner-to accommodate all of your various writing needs. RULED NOTEBOOK: Keep track of your thoughts, notes, and to-dos or try your hand at writing your own spells in the lined notebook. UNDATED WEEKLY PLANNER NOTEBOOK: Use the undated 52-week planner notebook to start planning at any time of the year, and organize your schedule, itinerary, plans, and important dates. Never miss potions class again! DOT GRID NOTEBOOK: Create your own creature diagrams, ingredient lists, or sketches in the dot grid notebook for more creative space. CONVENIENT 6 x 8.5-INCH SIZE: These notebooks are large enough to comfortably write in and small enough to easily fit in a bag or backpack to take with you on the go. It is the perfect writing and organizing tool for all witches, wizards, and Muggles™. MULTI-PURPOSE NOTEBOOKS: This set of planner notebooks can be used alone or as refill notebooks for the Harry Potter: Spells and Potions Traveler's Notebook Set or any other Harry Potter™ Traveler’s Notebook Set from Insight Editions. Create your own personalized combination of journals inside your Traveler’s Notebook.