When people visit your website or social media, they might not be looking to buy right away. They might be on a quest for inspiration, tips and tricks, etc. If your website only consists of a homepage, About Us and a list of the products or services you have to offer, they might just forget about you if they don't buy right away. When you have a blog with interesting content, people will stay on your page much longer. They will be reading, saving and sharing your articles with others. You first give them something of value without asking anything in return, and when they need a service that you happen to offer, you'll be the first one that pops into their minds. I believe in the principle of QVCA: I will write your blog posts according to these four principles that will convert readers into clients.