I'm ACSM certified and that is a tougher certification but it's worth it for the academic recognition. Which certification did you choose cause if you are doing ACSM I can sell you my 3 ACSM certification books in PDF format. ACSM Resources for the Personal Trainer, 3rd Edition. ACSM Guidelines For Exercise Testing and Prescription, 8th Edition. ACSM Certification Review, 3rd Edition. http://www.personaltrainerbusinessplan.com/acsm-certification-books/