From the second half of the nineteenth century, Japan has been a particularly enthusiastic user of exhibitions. Large-scale international exhibitions, including Osaka 2025, form only the tip of an iceberg comprising over 1,300 industrial, regional, and local exhibitions held in Japan over the past 150 years. In this unique history, Angus Lockyer explores how and why these events have been used as catalysts of development and arenas for fostering modern industry, empire, and nation. He traces their complicated genesis, realization, and reception, demonstrating that although they rarely achieve their stated aims, this does not undermine their utility - Japanese expos have provided a model subsequently adopted around the world.