Dear all, I'n an EE that finished his degree more than 10 years ago. I wanted to refresh my Electricity and Magnetism knowledge. I bough Purcells book some weeks ago (https://www.amazon.com/dp/110701402...TF8&colid=15PSWMWIMO0TY&coliid=I26DIPOJQU5489) and I'm kind of struggling through the maths (Vector calculus). I've been reading this forum and there are some topics related to this, so I narrowed down the options to refresh vector calculus to these 2: Vector Calculus by Matthews (https://www.amazon.com/dp/354076180...TF8&colid=15PSWMWIMO0TY&coliid=I34ING202323X4) Div, Grad, Curl,... by Schey (https://www.amazon.com/dp/039392516...TF8&colid=15PSWMWIMO0TY&coliid=I1I8BMAQ5PIGI8) I'm not looking forward to a profound maths development of the theory. What I need is to understand the concepts in order to be more fluent at studying Purcell's book. If any of you has gone through these two books, which one do you recommend? Thanks in advance for your replies!