AJ
I have 21 Ways to read A Tarot Card as well, and I think Tarot 101 is better for beginners because you'll go through the entire deck on one read through, whereas you only focus on one card on the first read through of 21 Ways to Read a Tarot Card. (21 Ways is definitely my next workbook, though.)
I'm on lesson three, now, and I really like how the exercises combine intellect with intuition.
I knew there was no way in this lifetime I'd go through 21 ways the way it was set up, so I shuffled and fanned and pulled a card from my deck randomly just like I do for readings, and used a different card for each lesson.