A+ Complete Guide PC Repair Textbook is for all those who wish to learn how to repair a PC also for those who already know but wish to stay updated with the forever changing world of hardware and software.
A+ Complete by David Groth Exams 220-301 & 220-302 was the way to go but more recently changes have been made and these are the exams as follows

220-601 Essentials (required for all candidates)

220-602 IT Technician

220-603 Remote Support Technician

220-604 Depot Technician

For those of you wishing to pass your A+ FROM NOW December 2007 into the New Year starting January 2008 then you should get yourself the complete kit from Sybex now owned by wisley. If you are serious and you want a thorough understanding and wish to pass my advice is to go for the complete kit

CompTIA A+ Complete Certification Kit
Quentin Docter, Emmett Dulaney, Toby Skandier, James Pyles
ISBN: 978-0-470-14560-9
Paperback
1743 pages
April 2007

By doing so you enhance your chances of passing first time simply as there some of the following benefits to gain

Hands-on exercises reinforce critical skills

Real-world scenarios put what you’ve learned in the context of actual job roles

Challenging review questions prepare you for exam day

Exam Essentials in each chapter helps you zero in on what you need to know

Includes Eight practice exams on CD: 2 each for A+ Essentials, IT Technician, Remote Support Technician, and Depot Technician

All of the above are essential and above all the book is well constructed and but together at the end of every chapter you read there are questions which you can answer to test your understanding and see if you are ready to move onto the next chapter.
I recommend that you use this study guide which covers all four exams in depth which will help you meet your objective as it is written nice and systematic I can assure you that you can be confident you will get the instructions you need to pass is to do not move onto any chapter until you feel confident you understand the previous one

Essential information above all hands on practice with day to day task which challenges your brain also what you will face in the field as a PC Engineer inclusive of installing software updating hardware and software and that is only part of it as there is so much more.

Practice what you’ve learned with challenging real world scenarios

Follow step-by-step exercises and get the skills you need in the field

Based on specific exam objectives–use this as a lab manual for certification prep.

If you really wish to pass the A+ for me there is no stronger recommendation I would give for A+ Complete Guide PC Repair Textbook.