It's a great idea to make a presentation of the defense of your codes once in a while. Of course we have you do that with your instructors, in writing. You'll have to do that on the job. You'll also have to do it verbally, maybe face-to-face with your supervisor.
So I suggest that you get your dog or cat or bird or maybe your spouse or a child who is too young to object, and practice on them! Explain to them very tactfully and diplomatically why the choice you made is correct. You may have to point out that, while the books are the state-of-the-art coding books, publishers are just making more and more errors every year it seems. So you researched this one very carefully and found...(and if your dog hasn't gone to sleep or your cat hasn't walked off mad, and your husband hasn't said, "that's more than I ever wanted to know about coding" or your 3-year-old hasn't disappeared while you were talking...) you will have developed your skills in presenting and defending your case. I recommend it! Try it on your parents, aunts and uncles, cousins! Maybe not. People will start running from you at family events.