We are the published authors of 3 books, as well as one certification kit page for the Java platform. All of our books are published by Wiley and available on Amazon, as well as whereever books are sold.
Java OCA 8 Programmer I Study Guide
Our first book helps prepare you for the OCA 8 Exam (1Z0-808) and Java Foundation Exam (1Z0-811).
Java OCP 8 Programmer II Study Guide
Our second book helps those taking the OCP 8 Exam (1Z0-809) and OCP 8 Upgrade Exams (1Z0-810 and 1Z0-813).
OCA / OCP Java SE 8 Programmer Certification Kit
This Java 8 Certification kit includes both the OCA 8 Study Guide and the OCP 8 Study Guide.
Java OCA/OCP 8 Programmer Practice Tests
This book provides useful practice questions to hone your skills for any of the Java 8 certification exams.