Rosamond Dauer Books

Bullfrog builds a house

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Not wanting to forget any important items in his new house, Bullfrog seeks the advice of Gertrude. Upon completion he finds he has overlooked one thing.

Bullfrog and Gertrude go camping

By Rosamond Dauer

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When Bullfrog and Gertrude go camping, they take an unlikely member into their family circle.

Bullfrog grows up

By Rosamond Dauer

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A family of mice raises a card-playing, bath-taking tadpole who as a bullfrog begins to eat alarming amounts.

Bullfrog builds a house

By Rosamond Dauer

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Not wanting to forget any important items in his new house, Bullfrog seeks the advice of Gertrude. Upon completion he finds he has overlooked one thing.

Bullfrog and Gertrude go camping

By Rosamond Dauer

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When Bullfrog and Gertrude go camping, they take an unlikely member into their family circle.

My friend, Jasper Jones

By Rosamond Dauer

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A child gets tired of cleaning up after his make-believe friend.

My friend, Jasper Jones

By Rosamond Dauer

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A child gets tired of cleaning up after his make-believe friend.

My friend, Jasper Jones

By Rosamond Dauer

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A child gets tired of cleaning up after his make-believe friend.

Lotus Vol 53 Lotus International

By Pierluigi Nicolin

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Lotus Vol 54 Lotus International

By Pierluigi Nicolin

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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.