Man there's not a lot to write in a readme for such a book. You can get the license info in LICENSE.TXT (hint: it's the MIT license). I probably won't copy it in every module. Just pretend it's there, please. The code in these files has been tested with Erlang releases R13B+. In case you're not sure it will run on another version, you can run the tests yourself by compiling tester.erl and then calling: 1> tester:dir(). or 2> tester:dir("/modules/path","/unit/tests/modules/path/"). Which should run all the tests. If you're using the release R13B, there is a patch you need to apply in order to have unit tests running (see http://erlang.org/download.html). Note that even if the tests run fine, you'd benefit in using releases R13B+. If you need any more help, don't hesitate contacting me: email@example.com.