Having used the A+ cerfication "All-in-one" guide (which I thought to be very good) I had high hopes for this sister title. Unfortunately, I soon realised I had made a mistake. The text is littered with typos (annoying) through to blatant errors and contradictions (unforgivable). The proof readers were either inept, unqualified or both with regard to the material. This conveys a definite rushed feeling for publication. The format was not to my liking. I like to revise and sit each exam seperately, rather than revise all three and sit them consecutively. Unfortunately, although it would be difficult to completely pigeon hole sections of text "per exam", I feel that much more effort could have been made. The exam matrix at the back of the book does little to help with this. IMHO look elsewhere unless you already have substantial experience, knowledge and patience.