Carolyn Mackler Books

250 ways to make America better

By Carolyn Mackler

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Love and Other Four-Letter Words

By Carolyn Mackler

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When she and her mother move to an apartment in New York City after her parents decide on a trial separation, sixteen-year-old Sammie learns to deal with her mother's fragile mental state, her best...

Love and Other Four-Letter Words

By Carolyn Mackler

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Best friend next door

By Carolyn Mackler

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Two girls who share a birthday and palindromic names struggle with respective parental challenges and loneliness while gradually overcoming their differences to become close friends.

Best Friend Next Door

By Carolyn Mackler

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Best Friend Next Door

By Carolyn Mackler

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Love and Other Four Letter Words

By Carolyn Mackler

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The earth, my butt, and other big, round things

By Carolyn Mackler

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Feeling like she does not fit in with the other members of her family, who are all thin, brilliant, and good-looking, fifteen-year-old Virginia tries to deal with her self-image, her first physical...

Guyaholic

By Carolyn Mackler

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Sometimes it takes getting hit with a hockey puck to help you see what’s good for you! Carolyn Mackler is back — and V is off on a solo road trip — in this funny, poignant follow-...

Vegan virgin Valentine

By Carolyn Mackler

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Mara has her senior year planned out and her sights set on Yale when her niece, who is only one year younger and opposite in temperament, moves in and disrupts Mara's life.

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.