Erika Hall is the co-founder and director of strategy at Mule. She has advocated for the importance of evidence-based design and strong language since the late 20th century. This represents decades of fisticuffs.Even though writing is ever so much harder than talking, she was driven to produce Just Enough Research and Conversational Design, both from A Book Apart. Erika loves helping people overcome the often invisible organizational barriers to doing good work.