Born in Osaka, he started writing novels while still working as an engineer at Nippon Denso Co.?(presently DENSO). He won the Edogawa Rampo Prize, which is awarded annually to the finest mystery work, in 1985 for the novel H?kago (After School) at age 27. Subsequently, he quit his job and started a career as a writer in Tokyo.

In 1999, he won the Mystery Writers of Japan Inc award for the novel Himitsu (The Secret), which was translated into English by Kerim Yasar and published by Vertical under the title of Naoko in 2004. In 2006, he won the 134th Naoki Prize for Y?gisha X no Kenshin. His novels had been nominated five times before winning with this novel.

He writes not only mystery novels but also essays and story books for children. The style of writing differs from his novels, but basically he does not use as many characters as in his novels.

Novels:

• , 1985
• , 1988
• , 1989
• , 1991
• , 1994
• , 1998
• , 1999
• , 2003
• , 2004
• , 2005 (Tantei Galileo Spin-off)
• , 2007
• , 2008
• , 2010

Some of his novels have been made into TV drama series and films:

• Himitsu (Film, 1999 Original Title: Himitsu, 1998)
• Lakeside Murdercase (Film, 2004 Original Title: Lakeside, 2002)
• g@me (Film, 2003, Original Title: Game no na wa y?kai, 2002)
• Tokio chichi e no dengon (TV Drama, 2004 Aug-Sep, Original Title: Tokio 2002)
• Byakuyak? (2006)
• Galileo (TV Drama, 2007 and TV Drama SP, 2008, Original Title: Tantei Galileo 1998 and Yochimu 2000)
• Ry?sei no Kizuna (2008)
• Y?gisha X no Kenshin (Film, October 2008)
• Samayou Yaiba (Film, 2009)
• Shinzanmono (TV Drama, 2010)

Keigo Higashino???? ???????????