help in choosing a book

[Mary]

I will be visiting Italy, specifically the Chianti area near Florence,
in late October.  I would like to take along a guide on butterflies in
Europe.  I have several butterflies of the world books, but want one
specifically on Europe.  I haven't been able to find anything specific
to the region.  I have found several European butterfly books, but don't
know which one to get to take along.  Space is always a problem, so soft
cover and not too huge would be a plus.  Does anyone have a
recommendation on which book of the many out there is the better choice?

Thanks............

Mary