I have created pdfs out of Mike Griffith's "PMI-ACP exam Prep.." for the chapters which are not available at RMC website in soft form. I am just copying the book for future refernce as I have to return the book. I am planning to appear for the ceritfication later in the year. Right now I am just copying the text and some diagrams. I am skipping the exercises, some complicated diagrams and the questions/answers (at the end of the chapter.) for the time being. If you want it in the present form do let me know. Free of cost.