Uncommon has a lot of tropical fruits -- atemoya, cherimoya, carambola, guava, feijoa, kumquats, litchi, loquat, tamarillo -- and not-all-that-uncommon fruits such as blood oranges, clementines, currants, kiwi, mango, papaya, passion fruit, persimmon. No Buddha's hand, though. So if you have access to a wide variety of fruits, there are some very good recipes.
There IS a lot of repetition of vegetables in both, but as far as I can tell there is no duplication of recipes. I usually check both books when I'm looking for information or recipes. Some vegs are only in one book or the other. And
Vegetables has color photos, which my paperback of
Uncommon does not.
Isa, BTW: I don't know why your message couldn't get to me; I only have 16 messages TOTAL in my boxes.