There is a lot of free information of one of the fathers of the Market Profile who is doing already close to 40 years of research on the Market Profile. Please note that in the weekends some parts of his website are free to use. www.cisco-futures.com. Please do not get distracted by the layout of the website. There is outstanding free material there no where else to be found on Market Profile. Here the Market Profile evolves beyond the classical books and works.