A+ Certification help please
 

Hello,

I am getting ready to take the A+ Cert test, i just purchased A+ Certification All-in-One Exam Guide, Sixth Edition, on it, it says "Full coverage of all material on the new CompTIA A+ Exams 220-601, 220-603, 220-604. Now what confuses me, the place where i will be taking the A+ test saysCompTIA 220-301 A+ Core 120 min 220-302 A+ OS120 min

It is 220-301 and 220-302, it differs from what the book says.
Is everything i need to take the test going to be in the book or should i purchase a different book.

Thanks a lot.