From our Librarian, Margaret Glover

Signalling

Books on Defence have sections on signalling e.g. Defence by Larry Cohen.

Books that are specifically on Signalling include:

Bird             Defensive Signalling at Bridge (2010)
Horton        Better Signalling Now (2014)
Lavinthal     Suit preference signals (1964)
Lawrence    Topics on Bridge - 9. Signals on Defense
Pottage       Easy Guide to Defensive Signals (2005)
Roth            Signal Success in Bridge (1989)
Woolsey      Modern Defensive Signalling (1992)