Ever had this weird gut feeling that something is off in your code, but couldn't put the finger on why? Are you starting your projects with the best intentions, following all best practices, and still feel like your architecture turns weird eventually?
Maybe, it's not your fault! Maybe, the tools or methodology you're using are applying design pressure that you're not cognizant of, but that influences the shape of your code.
The best way to prevent that is becoming aware of the forces at play. So, let's look at what design pressure is, look at the most prominent examples of good and bad, and explore how to leverage the former and quell the latter. Because you can only deal with something you know exists.