If you have a basic understanding of the card meanings and can perform a 1–3 card reading—you are ready! If you feel like you might need a refresher or some quick tips, I recommend taking part in the Tarot 101 course offered inside of the Community.
Plus, please know that it’s perfectly okay for you to consult the books (and the Biddy Tarot website!) while you’re still learning—just don’t copy word-for-word text into your readings.