Monstrous Regiment, by Terry Pratchett
Discworld Series, book 31
My rating: 8/10

When Polly Perks' brother goes missing, presumably captured in the war between Zlobenia and Borogravia, Polly must cut her hair and leave her work as a barmaid to find him. Pretending to be a man, she joins the army and is added to a small regiment called "the Ins-and-Outs", in which she soon discovers there are more secrets than hers alone.

The main reason this story has such a high rating is the strong female leads. Although he has some strong female characters, like Tiffany Aching, Susan Death, and the witches, he is not famed for all the women he writes. The writing in this book is also done very well, incorporating his trademark humour into the writing without letting it overly influence the plot. 

That said, there are things that still need work. 

I did not give this book a 10/10. He still includes some stereotypes about women, and though I would include an example, it would be a spoiler. It's some of his better work, but in my opinion not the best.

Aside from that, it was a good book (still not a 10/10) and the good far outweighs the bad.