diff --git a/.gitignore b/.gitignore
index 9386f3b..22f1ca8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,5 @@
 /target
 /Cargo.lock
 **/*.rs.bk
+/prof
+*.profraw
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..f40e269
--- /dev/null
+++ b/README.md
@@ -0,0 +1,17 @@
+# RADN
+
+## Coverage
+
+```sh
+rustup component add llvm-tools
+cargo install grcov
+```
+
+```sh
+export RUSTFLAGS="-Cinstrument-coverage"
+export LLVM_PROFILE_FILE="prof/%p-%m.profraw"
+```
+
+```sh
+./coverage.sh
+```
diff --git a/coverage.sh b/coverage.sh
new file mode 100755
index 0000000..79fca17
--- /dev/null
+++ b/coverage.sh
@@ -0,0 +1,6 @@
+export RUSTFLAGS="-Cinstrument-coverage"
+export LLVM_PROFILE_FILE="prof/%p-%m.profraw"
+cargo test
+cargo run --example trace
+cargo run --example trees
+grcov . -s . --binary-path ./target/debug/ -t html --branch --ignore-not-existing -o ./target/debug/coverage/