 This material provided the basis of a course on truth makers I gave in Cambridge, Michaelmas 2012. I am grateful for helpful feedback from the participants and also many helpful conversations and correspondence concerning truth making with Helen Beebee, John Bigelow, Jeremy Butterfield, Ross Cameron, Chris Daly, Julian Dodd, Dominic Gregory, Ghislain Guigon, Jane Heal, John Heil, Herbert Hochberg, Jennifer Hornsby, Frédérique Janssen-Lauret, Nick Jones, David Liggins, Jonathan Lowe, Mike Martin, Hugh Mellor, Peter Milne, Kevin Mulligan, Laurie Paul, Bryan Pickel, Stephen Read, Gonzalo Rodriguez-Pereyra, Jonathan Schaffer, Jeroen Smid, Peter Simons, Tim Williamson, Ed Zalta and an anonymous referee for SEP. 