Reversible monthly/quarterly planner provides a convenient; write-on/wipe-off surface that is reversible for two sides of dated planning. Horizontal side features 12 months from January to December; and the vertical side displays the same months in a quarterly format. The months include daily blocks for writing deadlines and milestones. Both sides are dated. Update easily by erasing and then rewriting. Two-sided erasable planner includes a wet-erase marker.