HarperCollins

Pearson+

pearson.com

hoopla

hoopladigital.com

Barnes & Noble

barnesandnoble.com

BookBub

bookbub.com

Booknet

booknet.com

Chapterly

chapterly.com

Wiley

wiley.com

AbeBooks

abebooks.com

Poetry.com

poetry.com

Literature.com

literature.com

Penguin Books

penguin.co.uk

Book Riot

bookriot.com

Waterstones

waterstones.com

Harvard Business Publishing Education

hbsp.harvard.edu

Harper's Bazaar

harpersbazaar.com

Penguin Random House

penguinrandomhouse.com

DK Books

dk.com

Hardcover

hardcover.app

Pressbooks

pressbooks.com

BookBaby

bookbaby.com

Routledge

routledge.com

Literacy Hub

lithub.com

Publishers Weekly

publishersweekly.com

Hudson Booksellers

hudsonbooksellers.com