MASTER / Size: (225 x 315 mm) Slightly bigger than A4, so that A4 sheets can be conveniently stored away.
MEDIUM / Size: (145 x 210 mm) Equally suitable for your writing desk or on your travels. A double page is just the right size for A4 photocopies.
POCKET / Size: (90 x 150 mm) The size to carry around. Fits in the inside pocket of your jacket.
REPORTER / Size: (90 x 150 mm) Just as handy as POCKET, but functions like a writing pad. Also available without the pad.
MINI / Size: (55 x 80 mm) Address book in credit card size for your wallet.