This was my first truly laugh out loud witch book, I felt like I had to drag myself through Equal Rites and Wyrd Sisters took a few sittings. Witches Abroad I read overnight one Christmas whilst off work.
This book is funny from start to finish, my personal favourite part being the bull-chasing event when they all decide to have a tipple.
I think around this time in the DW series Terry was starting to master weaving comedy with deeper meaning. The entire book slams home Granny's forceful lesson to Magrat of what magic is, how little it resolves and how much to use it i.e. as little as possible.
My favourite quote from Granny is actually from this book.
"Haven't you got any romance in your soul?" said Magrat plaintively.
"No," said Granny. "I ain't. And stars don't care what you wish, and magic don't make things better, and no one doesn't get burned who sticks their hand in a fire. If you want to amount to anything as a witch, Magrat Garlick, you got to learn three things. What's real, what's not real, and what's the difference."
Democracy is the theory that the common people know what they want and deserve to get it good and hard. H. L. Mencken