THIS IS THE BEST AND THE ONLY BOOK TO EXCEL IN TEA EXAM. I SAT FOR IRS TEA EXAM ON 03/09/07 AND I MUST SAY THAT PART A & B WERE MUCH EAIER THAN THIS BOOK. MATHEMATHICAL SECTION IS ABSENT IN IRS TEA EXAM.IF YOU CAN SCORE 70% ON THIS BOOK, ITS MUCH LIKELY THAT YOU WOULD SCORE OVER 80% ON THE ACTUAL TEST.