How can I start with affiliate marketing and which program is best to join?

Recently, many people have been asking me these questions. Instead of answering each individually, I have compiled knowledge and shared it here for newbies to reference. If this article is helpful, I hope to receive your support for more in-depth articles. Thanks you.
To start with affiliate marketing, you need to follow these main steps:
1. Understand Affiliate Marketing: Affiliate marketing involves promoting others' products and eaing commissions for each sale or action (like...

How can I start with affiliate marketing and which program is best to join? WordPress ...