Collaborating with a co-author on producing a textbook can have many benefits, said Steve Gillen, an attorney with Wood Herron & Evans. “It can diffuse the burden of a large project; allow you to draw on each other’s strengths; create a broader appeal for the work; and give you access to a sounding board for ideas,” he said. “On the other hand, the most bitter troubles and disputes occur between co-authors. Of all disputes, those between collaborators are the worst–they almost never have a happy ending.”

One source of trouble is in the way the Copyright Act deals with co-authorship, said Gillen. “The default positions stated in the Copyright Act with regard to co-authorship are often not those that you would provide yourself,” he said. They include: