J.K. Rowling hand-wrote a minibook based off Harry Potter and the Philosopher's Stone, which was sold for charity back in 2004. Some of the pages were released by the series' UK publisher Bloomsbury, which will be reselling the small book, just 31 pages long and 1.6ins by 2.4ins in size, and can be seen below.

Do note that there is no new information, just fun illustrations and tidbits from the first installment in the series. No word yet on where the sales for the Bloomsbury auction, on December 14th, will go, or who will benefit from it.