Top Publishers in Book Publishing
PENGUIN UK
PM Press
POTOMAC BOOKS
Page Publishing
Page Street Kids
Palgrave Macmillan
Panaf
Pantheon
Pantianos Classics
Paragon House
Parallax Press
Pathfinder
Pathfinder Press
Patriotic Education
Pax Books
Peace Publications
Peachtree
Pearson
Pearson College Div
Pearson Education
Pegasus Books
Penguin
Penguin Books
Penguin Classics
Penguin Group USA