For anyone who wants to start on the data mining topics, I extremely recommend thisavailable online for free. I found it last week and one of the interesting features of this book that caught my attention was its structure and visualization. They provided a table of content which is actually a Data Mining Map.
The book is practical and more suited for people who wants to be introduced to Data Mining in a easy way. There are a lot of pictures, tables , definitions and exercises. This project was created by the Department of Chemical Engineering and Applied Chemistry at the University of Toronto.
Great work and finding!