This paper seeks to examine some of the epistemological issues which relate to the debate concerning the justification of Work Based Learning in the HE curriculum. It will take account of post-modern perspectives on the theory of knowledge and of the so-called knowledge revolution and the impact these have had on the University. The perceived divide between academic and vocational knowledge, universal and local knowledge, and Mode 1 and Mode 2 knowledge will be discussed, and it will be argued that (...) such ways of thinking are inappropriate and a hindrance in any attempt to arrive at a satisfactory way of understanding the place and status of knowledge in Work Based Learning. It will be argued that Work Based Learning is involved as much in knowledge creation as it is with the application of knowledge and, therefore, that more holistic ways of perceiving knowledge are required. The paper will continue to argue that a more helpful way of thinking of knowledge is in terms of its level rather than its type, and it will conclude by commenting on Barnett’s concept of the practising epistemologist, and suggesting that this befits the profile of both the WBL facilitator and learner, before pointing to Raelin’s contention that Work Based Learning needs a new epistemology of practice. (shrink)