This is the second part of the best books for Java 8 certifications. Since you need to pass two exams, OCAJP8 and OCPJP8, to become a Java SE 8 certified developer, I have shared some of the best OCAJP8 books in the last article. In this article, I will tell you more about the second exam, OCPJP8, and suggest the best books to prepare OCPJP8. This exam is known as a professional level exam, and it's more stringent than the associate level exam. The OCPJP8 stands for Oracle Certified Professional Java Programmer. The exam code for this certification is 1Z0-809.