PLS HELP MEEE

hey guys, im interested to take ELT 356 (children book writing) but i read that if you want this course, you have to take ELT 255 (children's lit) or 256 (Creative writing: prose)

and before taking 256/255, you also have to take ELT 107 / 201. (understanding poetry) Can someone tell me is it true and how are the courses like!

btw I’m working full time and only have a diploma ^^