Help me Guys!

Hey Guys!I'm looking for at least one current book in BRITISH English, maybe with real conversations(SLANG,IDIOMS). PLEASE recommend me one of this these books.

Difficult as there are so many to choose from and slang varies a great deal between different parts of the country and with age groups. Almost every novel set in modern-day Britain and written by a living British author is likely to be chock-full of British idiom and some slang, particularly if it is light-hearted.  You might try novels from Nick Hornby or Andy McNab.