Potter book for auction

A wizard price is expected to be conjured up today when a rare first edition of Harry Potter and the Philosopher's Stone goes under the hammer.

The signed copy of the first book in the Harry Potter series is likely to fetch up to £12,000 ($33,200), the auction organisers say.

The sale at Christie's in London will also feature an uncorrected proof copy of the book.

With "JA Rowling" printed in error on the title page, it is expected to attract as much as £4000.