Manga divided into many different genres and depends of the sex and the age of the readers.These are:
Shōujo
Shōujo (literally "young girl"), is manga aimed at young females up to the age 18. These series tend to focus on romance and relationships from a young female's point of view. It’s my favourite genre ^^ examples of Shōujo:
Paradise Kiss
Chobits
Bokura Ga Ita
Shōnen
This is almost the same as shojo except it is mostly action, sports or romance for males up to age 18. It translates literally as