With the advancement in technology over recent years, publishers have looked at alternative methods of presenting books to readers. The Electronic book has been born, and is commonly referred to as an eBook. The list of Raymond E. Feist's titles which have been released for the eBook medium, is growing, see Publication Info.
If you are wondering why a book is not available in eBook format, please read the FAQ entitled Why a title may not be available in eBook format.