The David Tennant Treat 4 Today is a batch of photos which the BBC released to promote the Doctor Who two part episodes Silence In The Library and Forest Of The Dead.
These episodes were the eighth and ninth episodes of Series Four. David Tennant starred as the Tenth Doctor in this episode and Catherine Tate starred as his companion Donna Noble.
Please click on any photo for a larger version.
More photos were released by the BBC for this episode but these are the only ones which featured David Tennant.
Doctor Who section of DavidTennantOnTwitter.com