Education occurs most often in "real life" by becoming involved and learning the details as time progresses. Although there are several books on the topic, some so-called "how-to" or "silver bullet" books instruct readers to manipulate holes in the Google algorithm, which can quickly become out of date, or suggest strategies no longer endorsed or permitted by advertisers.
The warmer your visitors are, the more likely they are to convert on the offer you're promoting. Sometimes, they need more time and more attention. That's the purpose of a Multi-Step Pre-Selling funnel. You're not just sending people to your optin page. Once they join your list, they are redirected to a 2nd page, delivering more content, educating them on the offer and thus pre-selling it for you! This is a highly effective weapon that can 3x your sales.
Can you make money with affiliate marketing? The short answer is yes, affiliate programs can earn extra money and even a full-time income from home. The long answer is a little more complicated. Like any home income venture, success comes not so much from what you choose to do to make money, but whether or not you do what needs to be done correctly and consistently.