Sodei Rinjiro Books

Dear General MacArthur

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"This book compiles some 120 remarkable letters from Japanese citizens to General Douglas MacArthur during the postwar occupation of Japan (1945-1952). Painstakingly culled from a vast collection,...

Dear General MacArthur

By Sodei Rinjiro

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Were we the enemy?

By Sodei Rinjiro

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In August 1945, the first atomic bombs were dropped on Hiroshima and Nagasaki. What is hardly known is that 4,000 Nisei (Japanese Americans), the sons and daughters of Japanese immigrants who had b...

How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.