Business Fields

SEIBUNDO’s Business Fields

Founded in 1912, SEIBUNDO has spent more than a century focusing on the fields of science and technology which help society to develop and advance, and also on lifestyle and culture topics which enrich people’s lives. The Company has provided support for these areas through information communication and business activities in the field of publishing.

In recent years, SEIBUNDO has expanded its business activities to include special events, seminars, e-commerce and other areas outside of traditional publishing. Based on a desire to provide the content people demand and meet the needs of each and every valued customer through various formats and approaches, the Company endeavors to further expand its content-related business.

Pioneers in bookmaking since 1912

Through the publishing business, SEIBUNDO has continually produced easy-to-understand books and magazines that provide the information demanded by the times, to the people who need it. The Anglo-Japanese Conversation Manual (Nichibei Kaiwa Techo), for example, was published the very month that World War II ended in anticipation of Japanese society’s need for English conversation skills moving forward.

Wide-ranging experience
in the publication of translated books

SEIBUNDO has a rich array of experience in the publishing of translated works. We have put out books in China, Taiwan, South Korea, the United States, France, Germany, Spain, Thailand, Vietnam and other parts of the world.

Prolific publishing in a diverse array of genres

SEIBUNDO puts out more than 200 books annually and releases regular issues of 9 different magazines every year in a wide range of genres and categories including science, natural sciences, computers, agriculture, gardening, astronomy, art, handicrafts, cooking, lifestyle, flowers, pets, hobbies, children’s books/magazines, general educational materials, entertainment, and more.

Our Brands

For hobbyists who love the starry sky

Founded in 1965, Monthly Astronomy Guide (Gekkan Tenmon Gaido) was created for readers who are interested in the stars and outer space. Content includes everything from tips for enjoying popular stargazing events to articles on prominent space-related topics.

For those involved in the flower business and design

Florist was first released in 1984 and serves as a source of information on floral art and business at contemporary flower shops. Articles showcase seasonal floral arrangements, bouquets and displays created by leading floral designers from Japan and abroad.

For children who are future scientists

A monthly science magazine for elementary and middle school children, Science for Kids (Kodomo no Kagaku) was launched in 1924 and has, over the last century, provided the latest in science-related information to the youth who will become the leaders of our future. It focuses on themes such as space, living creatures and technology.

For audiophiles with an interest in homemade audio

First published in 1924, MJ Wireless Radio and Experiments (MJ Musen to Jikken) is a comprehensive monthly publication mainly revolving around vacuum tube and semiconductor amplifier building articles. It also covers the latest in audio products, high-quality music software, listening room technologies and more.

For all creators involved in graphic design

Idea debuted in 1952 and focuses on graphic design and typography in particular. Over the years, this publication has continued to provide readers worldwide with information on design both old and new, East and West.

For those involved in agriculture and horticulture

First published in 1926, Agriculture and Horticulture (Noko to Engei) primarily offers information on vegetable, flower and fruit tree growing technologies and techniques. Its articles introduce new plant, tree and flower varieties as well as cultivation equipment, up-to-date information on product distribution and marketing, and more.

Events: real-life, hands-on experiences straight
out of the pages of our books and magazines

With a central focus on workshops and discussion sessions, SEIBUNDO organizes a wide variety of events including exhibitions, package tours, and much more. As social infrastructure and services become increasingly digitalized, real-life experiences are more important than ever. In response, the Company actively delivers high-quality content through tangible, in-person experiences.

Products: novel merchandise with roots in book creation

SEIBUNDO sells unique goods affiliated with books and magazines, as well as products created through collaborations with other companies. Leveraging planning capabilities and business networks built up through book-publishing experience in order to develop new products is just another way that the Company strives to communicate information to the world, which is why we are pursuing active expansion in this field.

KoKa Shop!

KoKa Shop! is an online shop that sells electronic programming, crafting and experiment kits released in conjunction with cover topics featured in Science for Kids (Kodomo no Kagaku).

Websites and online magazines by SEIBUNDO

An online magazine to help enrich readers’ lives

An online magazine that’s fun to read and enriches your life,’s relaxing, laid-back articles are nourishment for your mind and spice up your day to day.

KoKa Net

Hands-on experiences to teach science and foster future scientists

A multimedia site based on Science for Kids (Kodomo no Kagaku) that delivers science news, information on special events, product information, educational contents, unique online article series and more.

Plant Life

Digital flower- and plant-related media that soothes the soul

No matter where you look, it seems that plants and flowers are always nearby. This site offers fun special features written by plant specialists and select flower shops from around Japan, exciting pictures, and other great content.


Agricultural media covering everything from production to distribution

Offering the latest in agriculture-related news, explanations of production technologies, insights into market trends and more, this website geared toward farmers covers everything from production through to distribution.


A website to support the efforts of creators

Supporting the efforts of creative people, this online forum introduces works by registered creators to people throughout Japan and the rest of the world. It also features content affiliated with Design Note and Illust Note.