The most recent version of the EDFMTC (Modules 1-3) textbook is the 2018 edition. The most recent version of the Module 4 textbook was published March 2011; an update is underway.
ASMC textbooks can be purchased here.
The EDFMTC (Modules 1-3) textbook is $110 for members or $120 for non-members. The Module 4 Acquisition textbook is $75 for members or $85 for non-members.
ASMC does not require textbook purchase to sit for the CDFM exams; however, feedback from candidates shows that many find the information in the textbooks to be very helpful in preparing to take the exams.