This week's book giveaway is in the Programmer Certification forum. We're giving away four copies of OCP Oracle Certified Professional Java SE 11 Programmer I Study Guide: Exam 1Z0-815 and have Jeanne Boyarsky & Scott Selikoff on-line! See this thread for details.
The OO, Patterns, UML and Refactoring forum is for general discussion of these issues. Discussion of certifications is much better suited to one of our certification forums, so I've moved this post to the "Product and Other Certifications" forum for you.