Spiral-shaped adhesive notepads and methods and devices for making them

A notepad comprising:

• a plurality of sheets arranged into a stack, each sheet having a first major face and a second major face, each of the first and second major faces terminating at a perimeter edge;
• and
• an adhesive disposed on at least a portion of the second major face of each sheet such that the portion of the second major face of each sheet releasably adheres to a corresponding portion of the first major face of an underlying sheet, wherein the adhesive on the portion of the second major face lies at least partially adjacent to a portion of the perimeter edge of a corresponding sheet, the portion of the perimeter edge of each sheet forming a releasably bonded side of the stack;
• and
• wherein the stack is twisted about a common central axis of the plurality of sheets present therein such that the notepad has a spiral shape.