Hey guys, Would love to learn CRO. I know there are tons of free guides out there and I know some about it, but it may be time to go through a course (unless you guys can recommend a definitive guide). I'm an avid reader of ConversionXL; it's where I first got exposed to CRO. Thanks @peeplaja . Any suggestions? I would also love a "playground" where I could practice the whole thing from beginning to end. Maybe a simulation or something.