Welcome to the Tie::Hash::Overlay README file. :) The basic idea for this module is simple enough. Whenever a hash is accessed, search through a list of other hashes and see if the key is in any of them. If it is, access that hash. Otherwise, access a fall-through hash that ensures that no accesses fail. Of course, there's a bit more to it than that. But the above description should be enough for now. This module is used in my Inheritance module, and that would be good place to look to see how to put this to good use. If you find a bug, have a question or comment, or just want to make a recommendation, feel free send me an e-mail at jql@accessone.com. Copyright (C) 1997 Ashley Winters . All rights reserved. This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.