If you bought a batch of ISBNs some years ago, and didn't allocate all of them, you may have noticed they are somewhat shorter than the current 13 digit ISBN formulation. Fortunately, new life can be breathed into your old truncated numbers. They can then go on to parent handsome barcodes to assist in the tracking of your magnum opus across the web and bookstores worldwide...
Legal Deposit Wants You
Self-published authors may be unaware that they are obligated to supply one copy of their book to the National Library of Australia. One imagines a vast warehouse somewhere in Canberra containing the literary effusions of an entire nation. Besides an author's Federal obligations, each state usually has its own Legal Deposit scheme. Public-spirited authors will therefore need to save for two lots of postage stamps.