The complete Design Guide for product designers and hands-on engineers, produced by Mach One Design, totally free, keep updating.
I was fortunate enough of working with some of the best product designers and engineers in home appliance, automotive and space industry before I started Mach One. I was considered one of the best motor drive and power electronics engineers by many colleagues of mine before I walked into the EMC world. Even so, I was aware that there are details in my field that I am not yet familiar with.