The technical concepts presented in this book are considered best practices, and you should be prepared to know what they are. As a software developer, you'll most certainly be presented with both good and bad examples of MVCs, refactorings, UML, design patterns, and collections.
Therefore, utilizing your new skills is as important as learning them in the first place. Try to leverage what you know in other areas and be on constant lookout for interesting tools, development techniques, designs, and projects.
After all, you do share planet earth with us, the authors, who welcome any help in creating a place where poorly written software is not shockingly easy to find.
Remember then, young Jedi: "Always in motion is the future'' (Yoda).