"debut book" is correct and can be used in written English.
It is used to refer to the first book by an author. Example: The author's debut book was a critical success.
Dean Burnett's debut book is now available in the US.
His debut book The Idiot Brain is available now in the UK, USA and Canada.
Dean Burnett's debut book The Idiot Brain is available now in the UK, USA and Canada.
His debut book, The Blinder (1966), was one of the first novels about football.
This month his debut book, The Shepherd's Life, was published by Penguin.
This phenomenon and more are covered in Dean Burnett's debut book The Idiot Brain.
A debut book by a writer lucky in his insights and technical gifts.
Indeed, as does our critic in her debut book, "Indian Summer" (2007).
Acqua Profonda is the title of the first chapter in Helen Garner's debut book Monkey Grip (1977).
His debut book titled "Too Many Cowboys, Only One Indian" is due to be released in September 2012.
Aveyard's debut book follows 17-year-old Mare, a red-blooded servant of the silver-blood elite.
