If you are self-publishing a book then you should be aware of some new developments around ISBNs and Cataloguing in Publication entries.
Thorpe-Bowker, the organisation that supplies ISBNs (International Standard Book Numbers), which all books should have, is now issuing a regular newsletter, designed to help the rapidly growing army of people who are choosing to self-publish their books. Read the full details on our our guide to ISBN page
You should also be aware that the arrangements for a Cataloguing in Publication entry (the other more or less essential identifying element that should appear on the Copyright page of a book) changed recently. Applications are now processed instantly, eliminating the old ten day timeframe. The details are on our ISBN page