William Emilsen is deeply committed to collecting observations about, and recording the history of, the Uniting Church in Australia (UCA). He was a founder of Uniting Church Studies, and earlier edited the collections Marking Twenty Years (1997) and The Uniting Church in Australia: The first 25 years (2003).
An Informed Faith has chapters on spirituality, ministry, scholarship, The Basis of Union, management, politics, Uniting Church schools, ecology, the Uniting Aboriginal and Islander Christian Congress, living cross-culturally, other faiths and evangelical and progressive Christianity. Authors include Ian Breward, Chris Budden, Tony Floyd, Katharine Massam, Marion Maddox, Michael Owen, Geoff Thompson and Val Webb.