"Outs" (Precautions and Challenges) by Charles Hopkins

It is an immensely practical work dealing with situations when something goes wrong, or you face difficult spectators. You'll never again be afraid to try out a new trick, even if they literally see what you do, even if they really catch you, you can finish successfully, entertainingly, and leave them baffled. (lybrary.com)

It is divided into three parts

• Outs - what to do when things go wrong
• Precautions - avoiding disasters by forethought
• Challenges - dealing with spectators that challenge you