diff --git a/tests/README.md b/tests/README.md
new file mode 100644
index 0000000..97efa54
--- /dev/null
+++ b/tests/README.md
@@ -0,0 +1,8 @@
+Tests
+------------------------------------------------------------------------
+
+Each test creates a _test_.c with the source of the last test being executed.
+On error, this source stays there and a .log file is created for debugging.
+
+
+You run a test file directly. For example `./memleaks`