If you're unaware of the impact the fashion industry has on the environment and social justice issues then definitely pick this up. You'll learn a ton. 

If you're already informed, this is just surface level and you probably won't learn much. 

This author thrives when telling her own stories about her own experiences. I think she too often takes quotes from others to fill in. I think this would have worked better as a 100 page guide over a full length book.