The Gene isn’t quite as great as The Emperor of All Maladies: the fact that this isn’t as much Mukherjee’s forte definitely shows, and there’s a couple of points of fact I’d quibble about. For the most part, though, it’s a really great discussion of genetics and the way they actually affect people, tracing a history of mental illness in Mukherjee’s own family as an example. I know this field pretty darn well by this point, and this is far from the first book I’ve read about genetics, but Mukherjee is a good writer, making it all seem fresh and worth reading even when it’s stuff I know backwards and forwards, and probably inside out too.
If you’re curious about genetics, about what genetics can do for us, and about how exactly things like recessive genes and pleiotropy work, this is a good choice. It’s not for experts, but it’s still a pleasant read even if you do know the topic already.