A good friend of mine is set to publish his debut novel, Her Name Is Violence which is a hard core noir not meant for the adolescent reader.
If that might be your sort of book, his Kickstarter to raise the funds for his upcoming marketing efforts is linked below. It'd be a great way to buy the book in advance and help out. If it's not your sort of book but it might be something that interests those you know, spread the word, please!
Let him know I sent you.