I'm running my business, and first of all I want this process to be optimized. I'm especially interested in how to establish communication with clients and competently provide services.

Have you read anything about how to make a business proposal? It seems to me that this really matters a lot in the process of doing business. I liked the article, which you can find at the link here. In my opinion, a great solution to increase the number of sales and generally improve the conversion of leads.