In his breezy romp through the intricacies of our social structure, Wallop declares that Guardian readers are Wood-Burning Stovers and Prescotts are Blackpool Posh, writes Sam Leith
Emulating Conan-Doyle's fictional sleuth requires more than a deerstalker and a predilection for the violin – attention to detail and a questioning, methodical approach are vital, writes Sam Leith
Our minds play tricks on us far more often than you might think. In his new volume Oliver Sacks cites a host of vivid examples, writes Lisa Appignanesi
Can violent video games cause people to be violent in the real world? Cam Robinson investigates for Gamespot's What If Machine, including interviews with Guardian Science blogger Martin Robbins and Middlesex University psychologist Dr Mark Coulson.