Second the rec for HWT. This is the single book we have:
http://www.rainbowresource.com/product/Cursive+Handwriting+Student+Workbook/007396/1294896405-155282
and it's fantastic. So clearly and sensibly laid out. They start with little c, then a, then d, and build very simply and logically by letter family. DS really enjoys it. I will say, the handwriting itself that they teach does not seem as attractive as what we learned as kids--the m with its three humps, the b that doesn't quite connect--but that seems to be what all the kids we know are learning, and I find my eye adjusting to it. I assume the new style is easier to write.
That said... if you suspect her teacher will be a stickler for writing "correctly," I would find out what the district/school uses, and get that. There are minor differences among the systems, and you don't want her getting dinged for doing it "wrong."
Heather