Ebook: Instrument Assisted Soft Tissue Mobiliization or IASTM is a newer, but very effective method for treating movement, pain, and dysfunction. It is appropriate for physical (physio) therapists, occupational therapists, athletic trainers, osteopaths, massage therapists, acupuncurists, chiropractors. Any fitness minded invididual or those who have received IASTM in the past would also learn how to self treat comfortably and easily with this IASTM manual.