Reversible: Plan one or two months at a time. Write-on/wipe-off surface for use with wet-erase markers. Notes space for next months plans. Wet-erase marker included. Dated/Undated: Undated; Calendar Format: Monthly; Page Format: Side One: Horizontal, One Block Month; Side Two: Vertical, Two Block Months; Academic Year: No.Package Includes: Includes one wet-erase markerNote: This is a non-returnable item.