Reading the recommended books and resources in the other responses are a great place to start. To really learn I recommend starting a small product or ebook an

Reading the recommended books and resources in the other responses are a great place to start. To really learn I recommend starting a small product or ebook and learn copywriting and sales on your own product. You will gain a wealth of knowledge. Here are a few more recommendations: https://copyhackers.com/2013/04/how-to-sell-without-selling-your-soul/ https://copyhackers.com/2013/04/how-to-sell-without-selling-... http://www.microconf.com/past-videos/ http://www.microconf.com/past-videos/ startupsfortherestofus.com