|Online Reading (HTML, good for sampling in web browser)||Buy|
|Kindle (.mobi for Kindle devices and Kindle apps)||Buy|
|Epub (Apple iPad/iBooks, Nook, Sony Reader, Kobo, and most e-reading apps including Stanza, Aldiko, Adobe Digital Editions, others)||Buy|
|PDF (good for reading on PC, or for home printing)||Buy|
|RTF (readable on most word processors)||Buy|
|LRF (Use only for older model Sony Readers that don't support .epub)||Buy|
|Palm Doc (PDB) (for Palm reading devices)||Buy|
In a one minute book trailer you're introduced to this thrilling series of 5 books about a Viking boy and his dramatic life.