Philosophers are on the whole too busy doing philosophy to take time to stand back and consider reflectively how the project itself actually works. This affords good reason for attending to philosophical hermeneutics, reflecting on the issue of how philosophical texts are to be understood and interpreted.
An excellent example of the study of philosophy through hermeneutics, Interpreting Philosophy is a book that looks at philosophy through the lens of hermeneutics. The book is highly challenging but rewarding in how it lays out to the reader how philosophy is written and how the very context of the social setting has an impact on how the transmission of philosophy takes place. I especially found the criticism of Deconstruction useful as I haven't found any useful critiques of it. It is highly interesting for those who like a challenging read or enjoy philosophy.