At a time when per-capita reading time in many countries faces challenges, some events have not only kept the publishing industry's lamp lit, but have turned it into a stage for cultural diplomacy, innovation, and global interaction. The world's largest book fairs are no longer merely places to sell books and have become multifaceted events that bring together millions of visitors, thousands of publishers, writers, and cultural actors. From the rapid pulse of publishing deals in Frankfurt to the excitement of book lovers in Kolkata, each of these fairs tells a particular story of the power of books in today's world.
Introducing the world's largest book fairs
Determining which book fair can be called the "largest" depends on various indicators; from the number of exhibitors and visitors to the size of the venue. Given the difference in these criteria, rankings may also differ. To reach a more precise understanding of each event's standing, a more detailed look at some of the world's most prominent book fairs is useful.
1. Frankfurt Book Fair (Germany); the oldest and largest global publishing market
The Frankfurt Book Fair, held every year in mid-October in the city of Frankfurt, Germany, is the world's largest trade book fair in terms of the number of participating publishers. This event, with a history of more than 500 years, has roots in medieval book markets; a time when in the twelfth century handwritten books were traded in this same place. After World War II, this fair became the most important global gathering for the modern publishing industry.
The Frankfurt fair today is not only the main hub of international book trade and publishing-rights negotiations; it also has an important place for introducing and developing new fields such as new technologies, multimedia, and film. This thematic breadth is a reflection of ongoing transformations in the publishing industry, including special attention to cross-genre adaptations.
Among the prominent sections of this fair is "Guest of Honor"; in this program, each year a country is introduced as special guest, and events such as literary readings, art exhibitions, public roundtables, theatrical productions, and radio and television programs are held as part of it. A dedicated hall is also allocated to that country's leading publishers. For example, in 2024, Italy was Guest of Honor with the slogan "Roots in the Future." And in 2025, the Philippines will take this title with the slogan "Imagination Fills the Air."
The Frankfurt Book Fair in 2024 hosted about 230 thousand visitors including publishing-industry professionals and the general public, and more than 4,300 exhibitors from around the world were present. These figures and its long history have established its place as the world's most important event in publishing.

2. Guadalajara International Book Fair (Mexico); the world's second-largest fair
The Guadalajara International Book Fair is considered the largest book event on the American continent and the world's second-largest fair. This fair, founded in 1987 by a university of the same name, has a special focus on Spanish-language publishing and is held every year from late November to early December in Guadalajara, Mexico.
This public event has a distinctive nature. Because it is a combination of a large trade fair and an important cultural festival. Among its attractive sections are the "Guest of Honor" program and the awarding of various literary prizes such as the "FIL" literary award in Romance languages, the "Sor Juana Ines de la Cruz" prize, and the "Publishing Merit" prize.
In 2024, more than 900 thousand people visited the Guadalajara fair, and about 2,700 exhibitors were present. The main aim of this event is to provide a professional space for publishing-industry actors and to create an opportunity for readers to meet writers and become familiar with the latest published works.

3. London Book Fair (United Kingdom); the center of English-language publishing-rights exchange
At the beginning, it was a specialized event for librarians; but it has now become an important platform for interaction among publishers, booksellers, rights agents, and the media. The London Book Fair is held every year in March or April and is one of the world's most important trade events in publishing. This fair is known as an international market for negotiations on publishing rights and content distribution in various formats and plays a key role in the global publishing industry.
The London fair, founded in 1971, now has an important place in the global publishing calendar. In 2025, it hosted about 30 thousand visitors and more than 1,000 exhibitors. And although it is smaller than the Frankfurt fair in number of exhibitors, it has a prominent role in English-language publishing-rights trade and attracts a wide range of international audiences. The "International Rights Center" and a set of conference programs are among the prominent sections of this event that strengthen its specialized and global character.
The growing focus on digital innovations, promoting diverse voices, and cultural diversity is a reflection of fundamental transformations in the publishing industry landscape. The London fair is not only a place for commercial and intellectual exchange, but by awarding prizes such as the "London Book Fair International Excellence Awards," it also gives greater depth to its cultural and professional role.

4. Hong Kong Book Fair (China); Asia's largest book event
The Hong Kong Book Fair is considered Asia's largest book event and is held every year in July at the city's convention and exhibition center. This fair, which began operating in 1990, was formed with the aim of promoting literary culture in the region and introducing international literary works, and over these years it has experienced striking growth. In 2024, this event hosted nearly one million visitors and more than 760 exhibitors. And with programs such as author talks, book-signing sessions, and cultural events, it created a special attraction for its audiences.
The organizer of this fair is the Hong Kong Trade Development Council (HKTDC), and over more than three decades it has turned it into one of Asia's most important book events. The main focus of this fair is promoting reading culture, easy access to affordable books, introducing international literary works, and expanding literature at the local and global level. This very approach has caused it to attract a wide audience from various age groups and interests.
Alongside the book section, side events such as the "Hong Kong Sports and Leisure Expo" and "World of Snacks" are also held at the same time and provide a more diverse and entertaining space for visitors.

5. Cairo International Book Fair (Egypt); the most important event in the Arab world
The Cairo International Book Fair is the largest and oldest book fair in the Arab world, held every year in late January or early February in Egypt's capital. This event is organized by the General Egyptian Book Organization (GEBO) and was first established in 1969, coinciding with the celebration of the thousandth anniversary of the founding of the city of Cairo. Since then, this fair has become one of the most important publishing occasions in the Arab world and every year attracts millions of visitors. Such that in 2024, its visitor count approached the five million mark.
The Cairo fair's widespread popularity shows its prominent role in promoting reading culture and raising literacy levels in the Arab world. In addition, offering a diverse set of cultural events such as seminars, film screenings, theatrical performances, art exhibitions, and music concerts has increased its attraction for various audience groups.

6. Kolkata International Book Fair (India); the largest non-commercial fair
The Kolkata International Book Fair is considered the world's largest non-commercial book fair and one of the most visited cultural events in Asia. This fair, with a focus on direct connection among readers, publishers, and writers, is held every year from late January to early February for 12 to 13 days in Kolkata.
The Kolkata fair, first held in 1976, in 2024 hosted more than 2.9 million visitors. This event is organized by the Publishers and Booksellers Guild and, because of its non-commercial character, has a unique place among international book fairs.
Diverse cultural programs, introducing a country as guest of honor, and a focus on literary exchange are among this fair's distinctive features. In 2025, Germany will be present as the guest country. Also for the first time, this fair will have an official symbol: a swan that is the symbol of the Hindu goddess of knowledge, Saraswati.
The popular nature, cultural approach, and great age of this fair have made it one of the most important cultural events of West Bengal and the Asian continent.

7. Sharjah International Book Fair (United Arab Emirates); the Arab publishing hub
The Sharjah International Book Fair, which began its activity in 1982, is held every year in November in the city of Sharjah and, with a focus on promoting reading and cultural growth in the Arab world, plays a key role in the Arab publishing industry. This event, with striking growth in recent decades, has become one of the world's largest book fairs and also one of the most prestigious cultural ceremonies in the Arab world. Attracting more than 1.8 million visitors and about 2,500 exhibitors in 2024 is evidence of this claim.
The Sharjah Book Fair is of high importance in publishing-rights trade; especially for Arabic-language publishers and the Middle East region, who use this opportunity to expand professional relations and introduce their works at the international level. In addition, its special focus on supporting the Arabic language and promoting reading culture is fully aligned with the cultural goals of the emirate of Sharjah.

8. Abu Dhabi International Book Fair (United Arab Emirates); an emerging Middle East publishing platform
The Abu Dhabi International Book Fair is one of the prominent publishing events in the Middle East, held every year in the UAE capital, and its main focus is promoting reading and expanding culture and knowledge at the regional level. This fair, which began in 1981 under the title "Islamic Book Fair," follows part of the cultural vision of Sheikh Zayed bin Sultan Al Nahyan, founder of the United Arab Emirates, and over the years has expanded steadily.
The Abu Dhabi fair is of special importance for Arab, Middle East, and North Africa publishers, and close cooperation with the Frankfurt International Book Fair has added to its credibility and influence. In 2025, this event hosted more than 1,400 exhibitors from 96 countries and was recognized as an important platform for exchanging ideas and introducing new literary works.
Although it is newer in history than some other fairs, the Abu Dhabi Book Fair has quickly established its place as one of the key platforms in the West Asia publishing landscape. Diverse programs such as dialogue sessions, seminars, and cultural events have made this fair's space more dynamic and influential for cultural and book-sector actors.

Tehran Book Fair 1404 (2025/26): Iran's largest cultural gathering
The Tehran International Book Fair, in 1404 (2025/26), will hold its thirty-sixth edition with the slogan "Let Us Read for Iran" at Imam Khomeini Mosalla in Tehran. This event, which will run from 17 to 27 Ordibehesht (April–May) 1404 (2025/26), will host about 2,300 domestic publishers and more than 90 international publishers from various countries. Iraq will be present as special guest in this edition of the fair.
The Tehran International Book Fair is still known as the largest cultural event in Iran and every year millions of visitors welcome it. This edition of the fair is held in both physical and virtual formats and includes diverse sections including general, educational, academic, children and young adult, international, and digital publishers. Also, various cultural programs including specialized sessions, book unveilings, and educational workshops are planned during the fair. In this edition, the first "Tehran Literary Fellowship" program will also be held alongside the main fair, designed with the aim of strengthening international cooperation in literature and publishing.
The economic role of book fairs in the global publishing industry
Book fairs are not merely cultural occasions; they also have a vital place economically in the publishing supply chain. For example, at the Frankfurt Book Fair, a high percentage of international book translation and publishing rights contracts at the global level are signed. In addition, by attracting hundreds of thousands of visitors, these fairs generate abundant direct and indirect revenues for host cities; especially in tourism, accommodation, transport, and advertising.
Also, fairs are a platform for introducing publishing-technology startups, offering digital distribution platforms, and creating new commercial partnerships among publishers. Such events play a key role in keeping the book market alive, despite challenges such as digital reading and declining per-capita reading time.
Closing remarks
A review of the world's largest international book fairs shows that these events each reflect the cultural, linguistic, and economic characteristics of their region. The Frankfurt fair, with a focus on publishing-rights negotiations and new technologies, represents the industrial and commercial face of global publishing; while Guadalajara and Kolkata, with a popular and cultural approach, more than addressing economic aspects, provide a platform for direct interaction between writers and audiences. The Sharjah and Cairo fairs, too, while emphasizing Arab-Islamic identity, have become a tool for cultural policymaking in the Middle East.
Differences in the degree of specialization, number of visitors, type of programs, and geographic position show that each region's publishing industry has taken shape in line with local needs and capacities. But ultimately, all these events are in unison on one common goal: keeping the culture of reading alive, promoting intercultural dialogue, and supporting the global cycle of book production and consumption.
Machine-translated from Persian by Namafar; the Persian original is authoritative. Read the original in Persian