(Jeff Abbott is a regular contributor at The Pen Addict. You can find more from Jeff online at Draft Evolution and Twitter.)
The Mark's HiBi Weekly notebook is a small spiral notebook that spreads your entire week on a single page, making it easy to plan events and tasks for each day. Unlike a lot of weekly or daily planners, this one features a wide landscape orientation, and also sports a back cover that allows the notebook to stand up on its own so you can easily reference the planner on your desk.
At 8.3 x 4.6 inches, it's a familiar size. It's a bit smaller than an A5 notebook, which makes it easy to store and transport, but also allowing enough room on the page for an entire week. While it's great that the full week is available on every page, that's where this notebook causes me trouble. Due to the small size, I've had trouble using the notebook since I don't normally write super small. Even if I do write incredibly small, there still isn't much room for me to add meetings, appointments, and tasks for each day without everything feeling incredibly cramped. At first glance, it looked like a great format. After using it for a week, I was a bit disappointed.