UK Registered Design 6527414  ·  UK Trade Mark UK00004399094  ·  Class 16  ·  Published in the Trade Marks Journal 2026/025

Introducing

DIMINUENDO

The book that disappears as you read it.

The world's first protected physical book format. Nine page spreads, each one smaller than the last — from a 30 cm cover to a 4 cm final page you read like a whispered secret.

30 cm  ·  27  ·  24  ·  21  ·  18  ·  15  ·  12  ·  9  ·  4 cm

Where it began

The sun slipped low and yawned goodnight.

The hens tucked their heads beneath soft wings.

A breeze went quiet in the tall, tall grass.

Lamps blinked off, one window at a time.

The old cat curled smaller on the chair.

The page grew small. The world grew still.

Quieter now.

Quieter.

…sleep.

One bedtime, midway through a picture book, a three-year-old girl asked her father: "Dad, when will the book finish?" He flipped to the end to show her how many pages were left — and wondered: what if a book could answer her by itself? What if every page were smaller than the last, so a child could feel the ending arriving in her hands? DIMINUENDO™ was born that night, in Wembley, London.


A format, not a single book

DIMINUENDO™ is a registered architecture for physical books. Any story can live inside it — bedtime poems, picture books, fiction, gift editions — and every one carries the same quiet magic: the world grows smaller as the story grows nearer its end.

9
Diminishing spreads
30 4
Centimetres, cover to final page
1st
Registered book format in UK publishing

Protected. Registered. Licensable.

DIMINUENDO™ is protected intellectual property, examined and accepted by the UK Intellectual Property Office.

UK Registered Design
No. 6527414
Accepted 8 June 2026
UK Trade Mark · Class 16
No. UK00004399094
Published 19 June 2026 · Journal 2026/025
Originated by
Sunday Bamgbopa
Tiny Giant Books · London

Be first to hold the first edition

The inaugural DIMINUENDO™ book — a bedtime poem that ends on a single word, on a single tiny page — launches as a signed, numbered limited first edition in 2027. Join the list and you'll hear before anyone else.

Thank you — you're on the list. The smallest page is waiting for you. 🌿

No spam, ever. Publisher and press enquiries: hello@diminuendo.co.uk