It would be best you would start from chapter 1 ;) Although the Anime is really great (can't wait for 2nd season) many scenes were censored..
(Hinami was holding the hand of her mother, in the Anime it was hidden in a bag; Oomori killed a mother and a child, in the Anime two lovers..). Further: many "details" are missing in the Anime, one of the most crucial chapter's:
http://www.mangago.me/read-manga/tokyo_ghoul/tr/238321/Vol6_Ch54/pg-3/
But as someone above said the Anime ends around chapter 66/67 ;)
The 2nd season of the Tokyo Ghoul Anime is not going to be from the manga, it is a new story written by Ishida.
News Source: http://www.animenewsnetwork.com/daily-briefs/2014-11-22/tokyo-ghoul-2nd-season-slated-to-premiere-on-january-8/.81328
also: http://www.mangahere.co/news/tokyo-ghoul-anime-season-2-new-cast--character-design-revealed/
Uh, no.
Here's smeone who translated a Japanese news site:
http://www.reddit.com/r/anime/comments/2iyfwt/tokyo_ghoul_second_season_will_have_animeoriginal/
That's why it's called Tokyo Ghoul √A and not "Season 2".
MAJOR SPOILERS:
It is actually an Alternate created by Ishida Sui, as Lightasus has said, and it's called Tokyo Ghoul √A , or Tokyo Ghou Root A. The "Root A", stands for Root Aogiri. Basically, the inside of Aogiri. This makes sense because in the new season, Kaneki actually joins Aogiri.
There are a lot of speculations by fans that he's doing so to bring down Aogiri, and find the One Eye King.
Ishida Sui is trying to start manga/anime fans on the same page I guess, which I find interesting.
Also, if you're interested in watching tomorrow, try these sites.
FUNimation
Animelab
Kiss Anime
It is actually an Alternate created by Ishida Sui, as Lightasus has said, and it's called Tokyo Ghoul √A , or Tokyo Ghou Root A. The "Root A", stands for Root Aogiri. Basically, the inside of Aogiri. This makes sense because in the new season, Kaneki actually joins Aogiri.
There are a lot of speculations by fans that he's doing so to bring down Aogiri, and find the One Eye King.
Ishida Sui is trying to start manga/anime fans on the same page I guess, which I find interesting.
The new opening features Shiro Kaneki crying blood, and there will be a different band. :/ No more Unravel...
The first episode of the second season is already out (just for information):
http://animeshow.tv/Tokyo-Ghoul-Season-2-episode-1/
does anyone know , what chapter does season 2 being in ... cuz I can't wait for the anime !