Err, I'm no expert, but I'll describe them as best I can:
The Lenormand deck is a standard set of 36 cards always with the same symbols for each number, no titles. The symbols are things like Clover, Bear, Star, Fox, Snake, Anchor, Scythe, Heart. Traditionally I think they were mostly read in a Grand Tableau of all 36 cards, and with certain methods like distance and grammar-like card combining, although shorter spreads are used too, like the lines of 5 or 9, or the 3x3. Reverals aren't used.
The Sybillas/Sibillas, whether Italian or French, seem to be all 52 card decks, one for each of the playing cards. The cards aren't numbered (although they do have numbers on them that I think are supposed to be gambling numbers,) but have straightforward titles like Money, Thief, Servant, Soldier, Regret, Melancholy, Married Woman, Jealousy, Misfortune, Enemy, Love, Hope, Joy, Surprise, Luck, Wedding, Priest, Doctor, etc. They usually have a couple of additional words or meanings listed. There isn't a lot available about them in English, but I believe they are usually read in smaller spreads, and reversals are used. They're fun to play with!