Reading this page will cause headaches, the publishing world is confusing, with lots of interchangeable terms, owners, imprints, publishers, divisions, groups and private multinational conglomerate corporations. If this page doesn't make any sense to you, that's because it doesn't make any sense. Hope this helped - Torch

Basic Publishing Explained

What is a Publishing House?

“…Publishers, are made up of smaller companies which operate independently called ‘houses’… each of which is creatively and editorially independent and made up of its own team of publishing experts, including editors, designers, marketers and publicists. Each publishing house, in turn, is made up of several publishing imprints”
From this article by Pengiun with alot of other jargon.

What is an imprint?

“An imprint is a subsidiary of a publishing company, and it’s the name that appears on the book as its publisher.
Imprints typically specialise in subject matter, audience, or genre. For example, Plume is a paperback imprint of Penguin Random House that publishes LGBTQ titles…

Generally, it works this way: Publishers have divisions, and divisions have imprints. 
- Publisher > division > imprint
- Penguin Random House is the publisher >  Penguin Publishing Group is the division > Plume is the imprint”

I stole this from Written Word Media if you want to read into it more and get more confused, click here

Imprints used for English Editions

Knopf
An Imprint used for all US hardbacks and Trade Paperbacks.

Random House Large Print
An Imprint used for all large-format paperbacks. This has only been used for one WOE edition (FWW).

Doubleday
An Imprint used for all non-US large-format hardbacks and paperbacks. This Imprint hasn’t been used since the Penguin Random House merger.

Some of these Imprints are also Publishers, they just don’t hold the rights to WOE, they are held by Random House Childrend’s Books, which is a division of Penguin Random House.

Penguin
An Imprint used for all non-US hardbacks and Paperbacks. The only imprint now used for non-US editions.

Laurel-Leaf
An Imprint used for US hardbacks pocket sized editions, only for three WOE Editions. This Imprint hasn’t been used since 2006.

Corgi
An Imprint used for all non-US small-format paperbacks. This Imprint hasn’t been used since the Penguin Random House merger however, Corgi is still mentioned on the copyright pages of Penguin paperbacks.