Standing on the experience of EssUP Ivar and his team, in particular Ian Spence and Pan Wei Ng, developed EssWork starting in 2006.
Ian Fleming | Ian McKellen | Ian Smith | Ian Rankin | Ian Brown | Ian Botham | Ian Thorpe | Ian McEwan | Ian Paisley | Ian Kershaw | Ian Bremmer | Louie Spence | Ian Roberts | Ian Ogilvy | Ian McShane | Ian MacKaye | Ian Holm | Ian Carmichael | Ian Richardson | Ian La Frenais | Ian Gillan | Ian Dury | Ian Bannen | Janis Ian | Ian Roberts (actor) | Ian McNeice | Ian Edginton | Ian Anderson | Ian Pooley | Ian Page |
Ian Spence and Howard Wainer in 2001 describe Playfair as "engineer, political economist and scoundrel" while "Eminent Scotsmen" calls him an "ingenious mechanic and miscellaneous writer."