diff --git a/examples/hello_lib/src/greeter.rs b/examples/hello_lib/src/greeter.rs
new file mode 100644
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+++ b/examples/hello_lib/src/greeter.rs
@@ -0,0 +1,75 @@
+// Copyright 2015 The Bazel Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/// Object that displays a greeting.
+pub struct Greeter {
+    greeting: String,
+}
+
+/// Implementation of Greeter.
+impl Greeter {
+    /// Constructs a new `Greeter`.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use hello_lib::greeter::Greeter;
+    ///
+    /// let greeter = Greeter::new("Hello");
+    /// ```
+    pub fn new(greeting: &str) -> Greeter {
+        Greeter {
+            greeting: greeting.to_string(),
+        }
+    }
+
+    /// Returns the greeting as a string.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use hello_lib::greeter::Greeter;
+    ///
+    /// let greeter = Greeter::new("Hello");
+    /// let greeting = greeter.greeting("World");
+    /// ```
+    pub fn greeting(&self, thing: &str) -> String {
+        format!("{} {}", &self.greeting, thing)
+    }
+
+    /// Prints the greeting.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use hello_lib::greeter::Greeter;
+    ///
+    /// let greeter = Greeter::new("Hello");
+    /// greeter.greet("World");
+    /// ```
+    pub fn greet(&self, thing: &str) {
+        println!("{} {}", &self.greeting, thing);
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use super::Greeter;
+
+    #[test]
+    fn test_greeting() {
+        let hello = Greeter::new("Hi");
+        assert_eq!("Hi Rust", hello.greeting("Rust"));
+    }
+}
diff --git a/examples/hello_lib/src/lib.rs b/examples/hello_lib/src/lib.rs
new file mode 100644
index 0000000..9dc6089
--- /dev/null
+++ b/examples/hello_lib/src/lib.rs
@@ -0,0 +1,15 @@
+// Copyright 2015 The Bazel Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+pub mod greeter;