Chapter 1

1. One outcome of bad code is that you can end up with a really badly written piece of code that is hard to understand. This can often lead to programmer stress and software that is buggy, hard to maintain, and hard to test and extend.
2. One outcome of good code is that it is easy to read and understand, as you know the programmer's intent. This leads to less stress for programmers who must debug the code, test it, and extend it.
3. When you break a large project up into modular components and libraries, each module can be worked on by separate teams concurrently. Small modules are easy to test, code, document, deploy, extend, and maintain.
4. DRY stands for Don't Repeat Yourself. Look for repeatable code, and refactor it so that you remove duplicate code. The advantage of this is smaller programs, because if such code contains bugs, you only have to change it in one place.
5. KISS means simple code that will not confuse...