西尾维新以别称“京都的二十岁”出道，2002年以20歳弱冠之姿以处女作“斩首循环-蓝色学者与戏言跟班”获得第23回梅菲斯特奖。“戏言系列”与其主角阿伊以受欢迎的人气程度分别得到宝岛社“这本轻小说真厉害!2006”作品及男主角人气第一名。

带有饶舌与疾走感的轻快文体，以及散落各处引用其他小说或模仿动漫画的句子，是他最大的特征。相比剧情推进，带出角色性格和特色设定的部分往往较为详尽丰富，就是仅有对话的场景亦可令人深刻投入，亦方便其在海量文字和资讯中嵌入叙述诡计。此举也被部分读者质疑有充字数提高稿费之嫌。作为融合推理小说与轻小说作家得到很高的评价。其作品深受笠井洁、森博嗣、京极夏彦、清凉院流水、上远野浩平等前辈作家的影响。与乙一、佐藤友哉、奈须きのこ等年轻作家也常进行交流。

2009年，其作品化物语被SHAFT改编成TV动画，监督是新房昭之。另外刀语也以每月一卷，共12卷的OVA型式推出。作品中最早被改编成动画的应当是“×××HOLiC Another HOLiC 蓝氏Ｃ型视力环”，被改编成×××HOLiC动画第一季的第17集。

荒木飞吕彦的漫画代表作《JoJo的奇妙冒险》与平野耕太的漫画作品《厄夜怪客》对于西尾维新的人物塑造产生重要的影响。

Nisio Isin, stylized NisiOisiN to emphasize the palindrome, is the pen name of a Japanese novelist and manga writer. Born 1981. He attended and left Ritsumeikan University without graduating. In 2002, he debuted with the novel The Beheading Cycle (クビキリサイクル Kubikiri Saikuru), which earned him the 23rd Mephisto Prize at twenty years of age. He currently works with Kodansha on Faust, a literary magazine containing the works of other young authors who similarly take influence from light novels and otaku culture, and Pandora, the Kodansha Box magazine. He was also publishing a twelve volume series over twelve months for the Kodansha Box line; Ryusui Seiryoin was matching this output, and the Kodansha Box website stated that this is the first time in the world two authors have done twelve volume monthly novel series simultaneously from the same publisher. In February, 2008, his novel Death Note Another Note: The Los Angeles BB Murder Cases, which is based on the Death Note manga, was released in English by Viz Media. Del Rey Manga has already released the first and second volume in his Zaregoto series.

His Monogatari, Katanagatari and Zaregoto novels have been adapted into anime. The sequel (Nisemonogatari) novel has also been adapted as an anime, as well as most of the "Monogatari Series" to date. Another of his works, Medaka Box, has been adapted into a two-season anime series, along with his light novel Juni Taisen, which has also been adapted into an anime.

Source: Wikipedia