Then, in 1997, BBC Books launched two concurrent series of books, the Eighth Doctor Adventures (EDA) (featuring the then-current incarnation of the Doctor), and the Past Doctor Adventures (PDA), featuring the seven previous incarnations. Between 1997 and 2005 approximately 150 original novels were published for both lines, combined. BBC Books also launched a short-lived line of Doctor Who-related short story collections called Short Trips; Big Finish Productions later obtained the rights to publish these books and that series continues as of 2010.