Robert Roper Books

Dora Goes to School Dora the Explorer 8x8

By Leslie Valdes

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Dolls of danger

By Lara Bergen

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Three teenaged spies are sent on a mission to discover why grown-ups suddenly started behaving like children and playing with toys rather than doing their jobs.

Dora in the Deep Sea

By Robert Roper, Christine Ricci

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Drawing on the searing letters that Walt, George, their mother Louisa, and their other brothers, wrote to each other during the Civil War, and on new evidence and new readings of the great poet, No...

Nabokov in America

By Robert Roper

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Writing about the author of the immortal Lolita and Pale Fire, born to a distinguished Russian family, Robert Roper fills out Vladimir Nabokov's American period, covering Nabokov's critical friends...

The trespassers

By Robert Roper

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Cuervo tales

By Robert Roper

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Dora the Explorer 2005 Paperback

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Scavenger hunt

By Robert Roper

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"Dora and Boots are on a scavenger hunt! Join them as they cross the Mucky Mud, visit Tico's workshop, and swing through Isa's flowery garden ..."--Cover back.

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.