David R. Gonzalez Books

Tio Jose and the singing trees

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A boy who loves music receives a wonderful, hand-crafted gift from his beloved Tío José, who had promised to show him how trees can sing.

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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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