Loads of free books, and books for under £1 on Amazon's website. Is the Kindle registered in her name or yours and do either of you have an account with Amazon. Best to register it in her name with her own account then she can choose her own books. My OH doesn't know what I'm reading, nor does he care!
its registered in her name but i have the amazon account, ive looked at some of the free books but she like true crime type books and there doesn't seem to be that many.
Try 'The Basement' by Stephen Leather, 74p, may just open up a new genre of books for her. I love true crime too but also like gory thrillers. When she finds authors she likes, check 'People who bought this also bought.....' and also a website called 'who else writes like' and 'fantastic fiction' or 'what do i read next'.
Wishing her happy hunting!