Magic 1 and 2 give totally practical advice and theory about how to use modalities to both interpret another person's preferred way of inputting information and how to structure one's communications to fit another person's preferred modalities. The Patterns books 1 and 2 are also necessary to enable a professional communicator to have a full range of tools and the vocabulary to explain the process. Highly recommended. Look at Milton Ericson's books on my list too. He is the father of NLP.