Mary Deinlein Books

Feathered travelers

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A bilingual activity book on neotropical migratory birds of the Americas for elementary school children. Color and black-and-white drawings supplement information on the raptors, songbirds, shorebi...

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.

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