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64mo, a term derived from the Italian 'sessantaquattro', is an intriguing paper size that's part of the ISO 216 standard. This format, often overlooked in common discourse, holds a unique position in the world of print and publishing.

As per ISO 216, which is internationally recognized for defining paper sizes, 64mo refers to a sheet of paper that has been folded six times to create sixty-four equal pages. Each page measures approximately 74mm x 105mm - a size that's compact yet functional.

64mo paper dimensions


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2A046.81 x 66.221189 x 1682119 x 1683370 x 4768
A120.51 x 0.7113 x 181 x 237 x 51
4A066.22 x 93.621682 x 2378168 x 2384768 x 6741
A110.71 x 1.0218 x 262 x 351 x 74
A101.02 x 1.4626 x 373 x 474 x 105
A3+12.95 x 19.02329 x 48333 x 48933 x 1369
A1+23.98 x 35.98609 x 91461 x 911726 x 2591
A0+35.98 x 50.87914 x 129291 x 1292591 x 3662
A64.13 x 5.83105 x 14811 x 15298 x 420
A55.83 x 8.27148 x 21015 x 21420 x 595
A48.27 x 11.69210 x 29721 x 30595 x 842
A311.69 x 16.54297 x 42030 x 42842 x 1191
A91.46 x 2.0537 x 524 x 5105 x 147
A216.54 x 23.39420 x 59442 x 591191 x 1684
A82.05 x 2.9152 x 745 x 7147 x 210
A123.39 x 33.11594 x 84159 x 841684 x 2384
A72.91 x 4.1374 x 1057 x 11210 x 298
A033.11 x 46.81841 x 118984 x 1192384 x 3370

The charm of this format lies in its portability. Its small dimensions make it ideal for pocket-sized books or mini manuals. In fact, during the Renaissance period, these tiny books were quite popular among scholars and travelers who needed portable reading material.

However, despite its historical significance and practicality, the use of 64mo has dwindled over time due to advancements in digital technology and changing consumer preferences. Yet it remains an integral part of ISO's A series - a testament to its enduring relevance.

While not as commonly used as A4 or Letter sizes today, the 64mo format continues to hold its own niche within the realm of print media. It serves as an excellent reminder that sometimes great things do come in small packages.

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Interesting facts about 64mo

1: The Origin of 64mo Paper

64mo paper is part of the French "in-octavo" series, which originated in the late 18th century. It was initially used for small-sized books and documents.

2: Size and Dimensions

The dimensions of a single sheet of 64mo paper are approximately 3.5 x 5 inches or 89 x 127 millimeters. It is one-eighth the size of a standard sheet in the series.

3: Folding Techniques

To create a book or document using 64mo paper, it is typically folded into eight equal sections, resulting in sixteen pages (including front and back).

4: Common Uses

Due to its small size, 64mo paper is often used for pocket-sized books, miniature editions, or as inserts within larger publications.

5: Historical Significance

In the past, this tiny format was popular for publishing religious texts such as prayer books and bibles that could easily fit into pockets or purses.

6: Rare Findings

Finding original editions printed on genuine antique or vintage 64mo paper can be quite rare today due to its limited use and production over time.

7: Modern Reproductions

In recent years, there has been a resurgence in creating modern reproductions of classic literature using traditional printing techniques on small-sized papers like the historic French series.

8: Collectible Value

Due to their uniqueness and scarcity, original publications on authentic antique or vintage 64mo paper can hold significant value among collectors of rare books and ephemera.

9: Paper Weight and Texture

64mo paper is typically lightweight, with a smooth texture that allows for easy folding and handling. It is often chosen for its portability and convenience.

10: Global Variations

The French "in-octavo" series, including 64mo paper, influenced the development of similar small-sized paper standards in other countries, such as the German "16mo" or the British "32mo."