Robert Dornhelm Books

War peace

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In Tolstoy's timeless epic of love and loss, a circle of aristocrats finds their glittering world crumbling as war threatens imperial Russia. Set during the years of Napoleon's invasion of Russia,...

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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.

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