This Is Just The Beginning!
Throughout this book, you've learned all about refactoring: what it is, why it's important, and how to do it!
But this book is just the beginning. There are still tons of code smells that haven't been addressed in this book. There are many more techniques, even for the issues covered in this book.
In addition to code health, there are many more areas where, as a professional software developer, you need to understand the warning signs of disease:
Ideally, as a professional business problem-solver (that's what you are, after all!), you will grow in your craft, impact, and career. As you grow, you'll find yourself having more influence and impact in terms of helping your teammates, managers, users, products, and organizations improve as a whole.
It's not all about code but solving tough and important...