diff --git a/.npmignore b/.npmignore
index a50451d..3e53844 100644
--- a/.npmignore
+++ b/.npmignore
@@ -1,3 +1,4 @@
+CONTRIBUTING.md
 Makefile
 docs/
 examples/
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
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+++ b/CONTRIBUTING.md
@@ -0,0 +1,20 @@
+## Contributing
+
+### Tests
+
+The test suite is located in the `test/` directory.  All new features are
+expected to have corresponding test cases with complete code coverage.  Patches
+that increse test coverage are happily accepted.
+
+Ensure that the test suite passes by executing:
+
+```bash
+$ make test
+```
+
+Coverage reports can be viewed by executing:
+
+```bash
+$ make test-cov
+$ make view-cov
+```