The Mysterious Multi: How to Play It, How to Play Against It
Mark Horton(England) is an internationally-known player and writer, and is Editor ofBRIDGEmagazine in the U.K.  His most recent book wasMisplay These Hands With Me.Jan van Cleeff(Netherlands) publishes and editsIMPmagazine.  He is a frequent contributor to the Daily Bulletins at World and European Championships.