Suomen kielioppia ulkomaalaisille
1. Additional information
3. In words
This Finnish grammar book is written completely in Finnish, so it's not suitable for absolute beginners. Still, I think this is a book everyone's ought to buy. It's very good as a reference. It explains all the grammar in basic Finnish, perfectly understandable if you have been studying the language for a while already. There are no dialogues or exercises, but plenty of examples for all the grammar subjects in it. In 2006, an English version of this book has been published.