I fully agree with the first reviewer. You won't find a better book of verb tables out there!
The book has the most common verbs set out as in a normal verb table, with all the tenses and moods (e.g. the subjunctive) that you could possibly wish for. In the back of the book, you have an index of verbs, each of which links up to a more common verb which has the same pattern. In this way, all 12,000+ verbs are referenced - so in using such a small book, you can conjugate any verb into any tense.
There is even a section that explains French grammar - this is in French of course. But there is an English version of the same book, if you'd rather everything is in English.
I've been using this book since sixth form (I've now just completed my 2nd year at university) and it has truly been, and continues to be, an invaluable resource to me.
Well worth the purchase - you won't regret it!