A Journal of Impossible Things (Human Nature)

The Journal of Impossible Things was a journal kept by John Smith of his strange dreams - actually memories from his life as the Doctor's tenth incarnation, with some memories of previous incarnations' appearances. All but Martha Jones believed these to be products of John Smith's imagination.

Inside it contained images of:
 * The Doctor's TARDIS
 * Police box
 * The TARDIS Console
 * Steaming TARDIS Console
 * Sonic screwdrivers
 * TARDIS Crystal
 * New Gallifreyan
 * Torchwood Institute Logo
 * Empty People
 * Gas Mask
 * Dalek Top
 * Dalek Saucer
 * Dalek
 * Cybus Cybermen
 * Cybus Cybermen Faceplate
 * Vortex Reapers
 * The 10 Faces of the Doctor
 * Rose Tyler
 * Family of Blood
 * Fob Watch
 * The Moxx of Balhoon
 * Wired-People
 * Autons
 * Raxacoricofallapatorian
 * Big Ben
 * Raxacoricofallapatorian Inter-Steller Transporter
 * References to the Doctor's family
 * Mighty Jagrafess of the Holy Hadrojassic Maxarodenfoe
 * Satellite Five (The Games Station)
 * Cat Nurses
 * Lupine-Wavelength-Haemovariform
 * K-9
 * Clockwork Droid
 * Martha Jones
 * Joan Redfern
 * Dalek Emperor
 * Anne Droid
 * Captain Jack Harkness
 * Pilot fish
 * Sycorax Leader
 * London Eye
 * London Eye Capsule
 * Rose's face on television set
 * Ood
 * The Beast
 * Toby Zed
 * Tenth Doctor
 * Nottingham?
 * Empire State Building
 * William Shakespeare

Behind the Scenes
The Journal of Impossible Things seems to be set to appear once more in the fourth 2009 special, as indicated from photographs from filming which have appeared online. A book with that title, featuring a fob watch on the cover, is published by a woman named Verity Newman (clearly a reference to Sydney Newman, the original creator of Doctor Who, and Verity Lambert, the first producer), portrayed by Jessica Hynes who previously appeared as Joan Redfern.