Esther
Papageno said:just because they are professional does not ensure that they are qualified to teach or that they're any good as readers.
My thing, too, is a lot of the Tarot is personal, figuring out what works best for you. Reversals is a big example, here. Some people prefer to use them some of the time, all of the the time or not at all. There's no definate right way. I think a good teacher would teach you what they know and do and encourage you to study and find things that work for you, but you can't really teach something you're not familiar with, either. You might glean some wonderful lessons from someone, but still find a technique in a book that ends up being very important to you.