Buy this book from me, not the other book sellers on here that post one generic pic of the book and then you have no clue what condition of book you're getting. There is no writing or highlighting in this book. Can the other sellers tell you that? They won't even reply to your msg if you ask. I will. If you have a question about this book, ask me. As someone who took CompTIA exams, I can tell you first hand that it's super important to study practice questions like the one this book offers. If you have a question about a subject in the book just let me know and I can verify for you.

As far as the 10% exam voucher. It seems like it just directs you to the publishers website so I think it can be reused. You'll have to try, but no guarantee. Seems like it's not just a one time code though.

It's a used book but it's in excellent condition.