ISBN management fee: Books can only be published legally if they own ISBN of publishing house, and using ISBN requires a certain management fee.
Review fee: When the publisher reviews the manuscript, the author needs to pay a certain review fee.
Editing and proofreading fee: the fee paid by editing and proofreading the text of the manuscript.
Cover design fee: Book publishing needs cover and back cover, and the design of cover and back cover needs to be charged.
Typesetting fee: the fee required for typesetting design of book text.
Proofing fee: the cost of proofing the cover and text.
Printing expenses: including paper, technology, printing, plate making, binding, logistics and other expenses.