I'm doing a toy project which uses a lot of boost libraries. In the course of doing this, I'm reminded of something that has bugged me for a long time. That is the placement of lots of stuff inside the namespace boost. Now that boost is the size that it is, this can become are real barrier to making things understandable. Currently I'm looking at range and iterator libraries - but I'm no there are lots of offenders. Certain names like join, zip, map, copy, etc. ... apear in multiple libraries. I would like to use "using namespace boost" but then I'm afraid that using something like copy will be ambigiuos Could we agree that the boost namespace (and directory structure) only be used for library names. Some time ago, I caught hell for including just a couple of functions in boost/namespace and directory. But I see tons of stuff in there now. Robert Ramey