Why you want an LCCN for your book
If you plan 
to sell your book to libraries, you’ll need a Library of Congress Catalog Number, aka an LCCN.
You can order your own through the website of the Cataloging in Publication Division of the Library of Congress. The best news is that applying for an LCCN is free, so it makes sense to simply add an LCCN when you self-publish a book.
A book must be longer than 50 pages to qualify for an advance purchase of LCCN. Because of this, many children’s books typically don’t qualify.
Need an editor? Having your book, business document or academic paper proofread or edited before submitting it can prove invaluable. In an economic climate where you face heavy competition, your writing needs a second eye to give you the edge. I can provide that second eye.
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