My 2 cents here ....
I won`t mention books about politics, religion , history etc to avoid any misunderstandings , only fiction books
For Tolkien fans anything by Gavriel Guy Kay would do. I`ve read Lions of Al Rasaan , Tigana(2 books) and Sarantine Mosaic (3 books, 21st century`s Lord of Rings) and i enjoyed every single one.
I finished in one reading Stephen Pressfield`s Gates of Fire. 50% fiction - 50% history. It`s about the battle in Thermopylae (the movie 300 anyone?)
In the same style is The Eight by Katherine Neville. Fiction and French revolution in a nice mix. Although i "saw" Neville`s trick half way through the book it was a nice reading.
Lately i`m reading a book about Game theory and what J. Nash has brought in the field but i can`t remember the english title nor the author