Dual Ruled Composition Book features two alternating ruling styles. The right-hand page offers a 9/32" college ruling for traditional note taking and the left-hand page features a 1/4" grid ruling to draw coordinating graphs, illustrations and interpretations. Note taking in this manner engages both hemispheres of the brain. These durable, hard cover, one-subject books are available with Dark Gray colored covers and White paper on the inside. Recyclable.