How many fruits basket magnas are there all together?

First of all its Manga XD And go to Booksamillion or Barnes & Nobles to get the whole set, there are 23 books in all. The episodes only go to about volume 8 and then they stopped making them because of budget cuts and you can start off with volume 8 or 9 if you want but its better to start at the beginning, because the show didn't include everything :D