Jillian Lawler has taken what sometimes can be an overwhelming and confusing system and made it easy and fun. Even though it is so simple to use, you still feel like your queries are being answered and you are being helped onto the right path of decision making. The yellow tabs are great and there is even an extra set if you lose one or the dog eats them (actual experience of mine!!).
I have always found the I-Ching intimidating to approach on my own, but this is novice friendly.