Gossman, Lionel. Thomas Annan of Glasgow: Pioneer of the Documentary Photograph. Cambridge, UK: Open Book Publishers, 2015 4:25 photo of bridge 15 october 1859 / others 22 october 1859
Charlotte Boman (2019) At Home in the Victorian City? Revisiting Thomas Annan and the Social Contexts of Early Urban Photography, History of Photography, 43:1, 27-46, DOI: 10.1080/03087298.2019.1600860
Ray McKenzie (1992) Thomas Annan and the scottish landscape, History of Photography, 16:1, 40-49, DOI: 10.1080/03087298.1992.104425205/3/20205/3/20205/3/20205/3/2020