Despite announced for October last year, the Harry Potter's adventures available on e-book were released this Tuesday, March 27^th. The seven novels about J.K. Rowling's boy wizard are for sale on the author's Pottermore website from today. Currently available in English, in U.S. And U.K. editions, the site also announced that French, Italian, German and Spanish editions will follow in the next weeks.

The books are available only through the Pottermore site, which says they are compatible with major electronic e-readers. Rowling for years resisted making her work available in digital form. The whole Pottermore site, which combines elements of computer games, a social network and an online store, opens in early April.

Its launch was delayed after testing with a limited number of users showed changes were needed. Meanwhile, the author announced last month that a new novel for adults is in work, but no further details were revealed yet.