The information for new users of Lightroom, including the tutorial videos, are inadequate! As a specialist in teaching adults technical material (very effectively), I found as a new user, that there are far too many assumptions included in the introductory training material. Since the use of the product is of a 'technical nature', it seems obvious that use of graphics and easy to understand language is needed. It is essential that a wide range of terms used in the introductory material makes too many assumptions about the basic understanding of certain terms. For example the use of the term "catalogue" which can mean many things to a technical person such as myself - needs careful explanation. Another term that I found also needed careful explanation was the term "xmp file". To describe this as a "sidecar" file is simply inadequate. This lack of basic explanation raises the question as to how does the Lightroom team test the tutorial material? Do they test it with new users of cameras - or do they expect the videos to do the work? I believe there will many many others who find the same difficulty. Time to rethink the training / educational strategy here, methinks.