Looking around to collect some.
Anyone had any experience with very small books?

Smallest Printed Books in the World
https://www.youtube.com/watch?v=FP2WkBTUkK8

There’s a publisher in Peru that produces some titles.
http://www.minibooks.com.pe/libros.php?cat=13

Bible produced by the Gutenberg Shop in Germany.
https://www.westernadvocate.com.au/story/2361103/this-tiny-book-is-small-in-size-but-huge-in-history/

Tau.Neutrino said:

I bought myself one of those in 1965 when in Germany (Mainz?). I still have it. At the time it was the smallest book in the world printed with movable type. It has The Lord’s Prayer in 7 languages (two different English versions). I bought the book with the cheap case (clear perspex, swivel-hinged top with a magnifier in the bottom). Later in 1965, I bought a Guinness Book of Records in England, which recorded my little Gutenberg book souvenir.

About 1990, my younger son and wife hatched a plan. They bought me a new Guinness book and threw the old one away, sadly.

https://www.gutenberg-shop.com/the-smallest-book/das-kleinste-buch-der-welt-das-vaterunser.html

I don’t know about smallest.

Queen Mary’s dollhouse had some really tiny books on its shelves. Real books with real stories in them.

Walt Disney at one stage introduced “the only book ever written by a mouse”, which was quite small.

Possibly the smallest true book I have at home is this one. It’s a fully illustrated prayer book possibly published 1954. 160 pages. Not all that small, 9.5 * 6.5 * 1 cm.

Wikipedia’s page on Miniature book

“Many books have claim to the title of smallest book in the world at the time of their publication.”

1674: Bloem-Hofje (Amsterdam: Benedict Schmidt, 1674). For more than two centuries, this remained the smallest book printed with moveable type.

1878: Dante, Divina Commedia (Milan: Gnocchi, 1878). 500 pages. 5 cm x 3.5 cm. Typeset and printed by the Salmin Brothers of Padua.

1897: Galileo Galilei. Galileo a Madama Cristina di Lorena (Padua: dei Fratelli Salmin, 1897). 150 pages. This remains to this day the smallest book set from movable type.

1900: Edward Fitzgerald, trans. The Rubaiyat of Omar Khayyam (Cleveland: Charles H. Meigs, 1900).

1932: The Rose Garden of Omar Khayyam.

2001: New Testament (King James version, Cambridge: M.I.T, 2001). 5 × 5 mm.

2002: Anton Chekhov, Chameleon (Omsk, Siberia: Anatoly Konenko, 1996) 0.9 mm x 0.9 mm.

2006: ABC books in Russian and Roman characters (Omsk, Siberia: Anatoly Konenko, 1996). 0.8 mm x 0.8 mm

2007: Teeny Ted from Turnip Town (category: world’s smallest reproduction of a printed book. Single sheet, not codex format.) 0.07 × 0.10 mm

2016: Vladimir Aniskin, (Russia: Vladimir Aniskin, 2016). “The micro-book consists of several pages, the precise size of the pages is 70 by 90 microns.

I’ve read many books on microfiche.

I’ve been carrying a Lilliput Webster’s dictionary in my pocket since I was 16. Published in 1957 (long before I was born!), it’s 47 × 31 × 17mm (h × w × thickness), and has 640 pages.

Michael V said:

https://www.gutenberg-shop.com/the-smallest-book/das-kleinste-buch-der-welt-das-vaterunser.html

wonder if the have a copy of the 42 line bible for sale?

Oopsy.