diff --git a/README.md b/README.md
index 37a36da..3b574b9 100644
--- a/README.md
+++ b/README.md
@@ -1,10 +1,22 @@
 # AutoImpute
+
 Automatic imputation tool for MPhil ACS dissertation
 
 Developed for Python 3 (tested with 3.5.2 on Ubuntu 16.04).
 
-### Requirements (tested versions)
+### Requirements
 
 * Numpy (1.14.0)
 
-* Scipy (1.10.0)
\ No newline at end of file
+* Scipy (1.10.0)
+
+### Instructions
+
+Run `python3 auto_impute/auto_impute.py` for help.
+
+### Directories
+
+* `auto_impute` - source code for AutoImpute
+* `data` - various data files for testing and investigations
+* `investigations` - Jupyter notebooks used for running experiments
+* `tests` - the unit test suite