Draw mountainous peaks, sketch the view from the top of your hike or doodle the plants and animals you see along the path. If you're spending the day at the river's edge, fill pages with sketches of fish and data on the health of your local riparian ecosystem.

The Theory series is filled with blank paper and is built for drawing and sketching with extra-thick, high-quality 100% recycled paper.

The textured covers of these notebooks have the feel of old textbooks, and with advanced lay-flat pages, they want to fall open, like a well-loved library book. Go ahead and see for yourself – these are the notebooks your most brilliant ideas, sketches, and illustrations have been waiting for.

The Theory series is built with extra-thick, high-quality 100% recycled paper and printed with soy inks, leaving a light footprint. Be inspired to ask the right questions, find creative solutions to complex problems, and beauty in the little things.