Professional planning is at your fingertips with the 4-Column Undated Appointment Book. It measures 8.5 x 11 inches, is available in hardcover, and provides 200 days of planning pages (each day has 4 ruled columns for side-by-side, four-person planning) with 15-minute appointments that begin at 7:00 a.m. and end at 8:45 p.m.