The ArcTop 01 Notebook from CKIE solves one of the most frustrating problems you face in life – the pen that goes missing right when you want to write something down. The ArcTop Notebook has a hollow space in its spine where the pen can be inserted vertically. The pen fits in snugly into the cozy space, ensuring that paper and pen are together at all times, and especially when you open up the notebook to scribble something important. Apart from the obvious usefulness and visual appeal, this notebook also happens to be the right choice for environmental reasons. If you’re a treehugger, you’ll love the fact that this ArcTop Notebook has a natural kraft cover, wood-free paper and recycled packaging material.