# Category

Hummingbird offers a free, turnkey e-book and audiobook retailing platform. The platform allows bookstores, publishers, media, nonprofits, bloggers, and others to compete with Amazon, Apple, and Barnes & Noble in the digital arena.

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Each merchant gets its own branded and customizable storefront for their customers to use for the discovery, purchasing, and downloading of e-books and audiobooks. They also get a robust branded app for reading and listening.

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Merchants can sell directly to their customers from the full catalogs of more than 3,400 publishers, including Workman, S& S, Hachette, Macmillan, HarperCollins, Penguin Random House, etc.

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There are never any fees involved. Merchants get their customers' email addresses and make up to 25 percent of every sale.

Questions? Please email us at Support@HummingbirdDM.com. Thanks!

Uncountable

David Nirenberg, Ricardo L. Nirenberg

$29.99

In Pursuit of Zeta-3

Paul J. Nahin

$26.95

The Complete Book of Origami Polyhedra

Tomoko Fuse

$15.99

How it All Works

Adam Dant, Brian Clegg

$24.99

The Book of Proposition Bets

Owen O'Shea

$19.00

Geometry of Grief

Michael Frame

$19.99

Barron's Math 360: A Complete Study Guide to Pre-Algebra with Online Practice

Caryl Lorandini

$14.99

Barron's Math 360: A Complete Study Guide to Geometry with Online Practice

Lawrence S. Leff, Elizabeth Waite

$14.99

Barron's Math 360: A Complete Study Guide to Pre-Calculus with Online Practice

Lawrence S. Leff, Christina Pawlowski

$14.99

Fear of a Black Universe

Stephon Alexander

$17.99

How Pi Can Save Your Life

Chris Waring

$11.99

The Ten Equations That Rule the World

David Sumpter

$14.99

What's the Use?

Ian Stewart

$16.99

An Introduction to Lifted Probabilistic Inference

David Poole

$49.99

Magic Polygons

Raymond R Fletcher III

$3.99

The Mathematics of Egypt, Mesopotamia, China, India, and Islam

$125.00

Visual Differential Geometry and Forms

Tristan Needham

$45.00

Stochastic Thermodynamics

Luca Peliti, Simone Pigolotti

$75.00

Encounters with Euclid

Benjamin Wardhaugh

$29.95

Do Not Erase

Jessica Wynne

$35.00

More Without Words

James Tanton

$7.99

Understanding Proof

Ed Hall, Tom Bennison

$29.99

The Hidden Mathematics of Sport

Rob Eastaway, John Haigh

$9.99

The Doctrine of Triangles

Glen Van Brummelen

$29.95

Picturing the Uncertain World

Howard Wainer

$23.95

The Geometry of the Universe

Colin Rourke

$70.00

Painless Pre-Algebra

Amy Stahl

$9.99

Painless Calculus

Christina Pawlowski

$9.99

Mathematical Journeys

Theoni Pappas

$9.99

Shape

Jordan Ellenberg

$15.99