Online retailing major, Amazon.com said it is adding all seven Harry Potter books to the Kindle Owners’ Lending Library (KOLL) from June 19.

Amazon has bought an exclusive license from J.K. Rowling’s Pottermore to make the addition of Potter e-books in English, French, Italian, German and Spanish.

Amazon.com founder and CEO Jeff Bezos said this is the kind of significant investment in the Kindle ecosystem that the company will continue to make on behalf of Kindle owners.

"Over a year, borrowing the Harry Potter books, plus a handful of additional titles, can alone be worth more than the $79 cost of Prime or a Kindle," added Bezos.

"The Kindle Owners’ Lending Library also has an innovative feature that’s of great benefit for popular titles like Harry Potter – unlimited supply of each title – you never get put on a waiting list."

Amazon stated reader’s notes, highlights and bookmarks in borrowed books will be saved, so they can have them later if re-borrowed the same book.

The Kindle Owners’ Lending Library has currently about 145,000 books that can be borrowed for free as frequently as once a month, with no due dates.