G is for Gal-dem
Strictly speaking this isn't a book, it's a magazine. But the print edition is a little more like a coffee table book than a magazine, and also it's definitely worth reading so I had to throw this recommendation into my alphabet.
Gal-dem is an online magazine written by women of colour for all people. They only started out a couple of years ago but are already doing pretty big things. They publish lots of new articles daily from contributors all over the world, and aim to print a physical copy every year after the release of their first print edition in 2016. I'm a big fan and read the website all the time (Link here), I also follow them on Facebook and Instagram. They host regular events in London, so if you follow them on social media you'll be in the know when they have anything exciting lined up.