OCAJP 8 is the latest exam in the Java’s OCA certification path. There are few good books for OCAJP 8 that are really helpful for the test preparation. Few of them are just released and you may not get in all the countries. It is important to choose a good book before you purchase mock exam simulators like Whizlabs.For example : Mala Gupta and Khalid Mughal books are released recently and not available in India. I will update here when they are available in all the countries.Here is the list of books that are useful for the OCAJP 8 preparation.I have been helping certification candidates and recommend them the best way for preparing Java certification exams. I have been working in Java for more than 13 years. If you have any queries, please drop a message in Quora or post your comments here.1. OCA Java SE 8 Programmer I Certification Guide by Mala GuptaThis book is published by manning publication. It is one of my favorite publication for reading the technical books. You can download the free chapter from their website.This book’s kindle versions are available from Sep 29, 2016.This book released very recently and available for the pre-order. It will be available to every one very soon. You can read the announcement of this book in CodeRanch.OCA Java SE 8 Programmer I Certification Guide: Mala Gupta: 9781617293252: Amazon.com: BooksThe following are the table of contents in the book:2. A Programmer Guide to Java SE 8 Oracle Certified Associate (OCA) by Khalid MughalA Programmer's Guide to Java SE 8 Oracle Certified Associate (OCA): Khalid A Mughal, Rolf W Rasmussen: 9780132930215: Amazon.com: Books3. Sybex PublisherThis book is most recommended and very good for preparing OCAJP 8 exam.Oracle Certified Associate Java SE 8 Programmer I Study Guide: Exam 1Z0-808 eBook: Jeanne Boyarsky, Scott Selikoff: Amazon.in: Kindle Store4. Oracle PressAnother book is from Oracle itself. Obviously Oracle material will be good.OCA Java SE 8 Programmer I Study Guide (Exam 1Z0-808) (Oracle Press): Edward Finegan, Robert Liguori: 9781259587511: Amazon.com: BooksI would update here if there are more books coming to the market. But, as of now no other publisher or writers are planning to write any new books for OCAJP 8.If you have purchased OCAJP 7 book, you can use the same book for preparing OCAJP 8 exam. The syllabus difference is very minimal and you can prepare with some additional references. If you have any questions, please write me comments. I will help you on preparing for the certification exams.Practice Test BooksApart from the normal study guides, there are few books that offer only the mock exams for the java certification exams. One of the book is recently released by popular author Jeane and Scot. It is available for pre-order in Amazon.OCA / OCP Practice Tests: Scott Selikoff, Jeanne BoyarskyPractical Guide to OCA Java 8 CertificationI have found one interesting book by the new exam taker who has shared his experience in the book with lot’s of nice examples. Also this book is with lot of simple tips and tricks like summary of notes. That might be helpful for you to easily point out the important points for each objectives.You may try this book but it is very new book that is not officially published by any company. It is own experience of a certified candidate. I have personally looked at the book, it seems with good content.If you are preparing for the OCAJP or OCPJP exams, these links may be helpful:How to prepare for OCPJP Certification Exam?How to prepare for OCAJP exam?