The chapter of Brian Martin’s book is available online as a PDF because he believes that having access to information is important. He frowns on the idea of making knowledge a commodity that is hard to get.
The availability of this chapter online does exemplify the belief of having free scholarship to an extent. Martin explained that while it is great to have free access to knowledge because that means that virtually anyone can obtain information, he also explains that the writers and researchers must be compensated for their hard work and that is why access to knowledge costs money. Martin only put this chapter online for free, but the rest of his book must be bought in order for him to be properly compensated for his work.