It depends on the person, not that many good trading books out there most are pretty useless try to find one that matches ur stlye yeah right , most of us on this site dropped some serious cash just learning the ropes of trading through trail and error, so if a course speeds things up why not, just be careful with who ur taking the course with make sure they actually trade. Another note you will retain very little info like 20% from a class so I've read.