by Claire Taylor for Search Engine Land When you work in an industry like SEO, staying updated on new technologies is crucial. But, not all learning needs to be about link building, content or technical aspects of SEO. It’s also valuable to look outside of the industry. With that in mind, here are 10 of the best (in my opinion) non-marketing books that offer great insight and value for any SEO professional. 1. ‘Never Split the Difference’ by Chris Voss This book might seem an unconventional choice for an SEO, yet negotiation is a skill more embedded in our daily activities…