Portrait of a Killer: Jack the Ripper—Case Closed that a paper manufacture expert she hired asserts that reams of paper supposedly used by Jack the Ripper to write several letters to Scotland Yard and paper purchased by Sickert's mother bear the same small-press watermark. She also claims that there are matches in the cutter's marks, which are a result of the rough cutting of each quire (or small package) for packaging. A "quire" was usually of 24 sheets. Though Cornwell's book sold many copies, many Ripperologists and other critics argued that Cornwell's theory was far from persuasive. Critics also note that Cornwell has said that she did not
Paper Toss: World Tour Paper Toss: World Tour Paper Toss: World Tour is a causal video game for iPhone, iPod Touch developed by Backflip Studios and sequel to "Paper Toss". "Paper Toss: World Tour" is set in different locations around the world, and players are challenged to flick a piece of paper into a bin. There is wind meaning wind direction and wind speed have to be accounted for making the game more challenging. Players are scored on how many times they manage to toss the paper into the bin until they miss. There are online leaderboards and 8 different levels ranging in difficulty.