Karsten and Petra for the iPad

Best friends Karsten and Petra may be about the most beloved children's book characters in Norway. From their first meeting, the two face a range of adventures in the book series by Tor Åge Bringsværd and illustrated by Anne Holt, published by Cappelen Damm.

And now the two can be read on an iPad - with the first book, Karsten får ikke sove (Karsten Mustn't Sleep) for free. Inside the app, a library include four other books featuring the pair, each available for NOK 42. The books are for ages 3 and up, and the other titles include: Petra begynner i barnehagen (Petra starts daycare), Petra vil bli dyrlege (Petra wants to be a veterinarian), Karsten og Petra er bestevenner (Karsten and Petra are best friends), Karsten og Petras Lucia-fest (Karsten and Petra's Lucia party).

You can download the app at Apple's App Store here.