Sales and marketing is something that I have absolutely no knowledge of. All I know about sales is going out for drinks with potential customers and marketing i

Sales and marketing is something that I have absolutely no knowledge of. All I know about sales is going out for drinks with potential customers and marketing is spamming your product all over the internet. Do you have any resources that explain this in more detail? Most of the resources I found feel very fake (i.e. they're selling the idea of marketing, and not the tools or information about marketing).