There are quite a few psychological techniques that can be used to influence others. There are however two problems:
1. There are many such techniques.
2. Sometimes it’s hard to imagine their application to your particular situation, especially when combining more than one such technique.
A book, where each chapter focuses on one technique, explains it, and then shows many specific applications in many fields, either by itself or combined with one or more of the other techniques. On online community could also be created for further discussions.