This is a pre-order item.

Orders containing in stock and pre-order items will be held until all items can be shipped together. If you’d like titles currently in stock to ship immediately, we recommend placing separate orders. Contact us to arrange split shipping. Publication release date are subject to change.

The layered and multi-hued patterns in this birthday calendar—made to hang on your wall—are based on a single geometrical composition punched out of colored card stock in multiple directions.

Stripped of specific years and the shifting days of the week, this object functions as a permanent, non-expiring ledger designed to track recurring annual milestones—birthdays, anniversaries, and memories—year after year.

Originally conceived by Karel Martens in 1968, the design has not been produced in a large edition until now.

Designed by Karel Martens

Published by Roma Publications, 2026

Softcover, top spiral binding with hole punch for wall haing, 14 pages, 11.81 × 16.54 inches

ISBN: 978-9-46-446104-6