Sequential pattern mining is useful in electronic commerce. It is also helpful to e-book store. To fulfill the requirement of e-retailing, this paper incorporated the RFM concept from marketing into sequential pattern mining. With adequately setting the selection criteria of recency, frequency, and monetary, the technique can analyze the user click stream, reading log, and also purchasing log. The discovered RFM sequential patterns can be applied into improving the design of Web site, personalized book recommendation, personalized e-catalog design, and so on. This paper proposed an algorithm to discover RFM sequential patterns. We use the real dataset from a retail chain to evaluate the proposed algorithm, and then propose an application guideline for RFM sequential pattern mining. Comparing the pattern groups of different segments help understand the implicit information in datasets, and then achieves the purpose of decision support.