diff --git a/rustbyexample/types/literals.rs b/rustbyexample/types/literals.rs
new file mode 100644
index 0000000..ad83004
--- /dev/null
+++ b/rustbyexample/types/literals.rs
@@ -0,0 +1,14 @@
+fn main() {
+    let x = 1u8;
+    let y = 2u32;
+    let z = 3f32;
+
+    let i = 1;
+    let f = 1.0;
+
+    println!("size of `x` in bytes: {}", std::mem::size_of_val(&x));
+    println!("size of `y` in bytes: {}", std::mem::size_of_val(&y));
+    println!("size of `z` in bytes: {}", std::mem::size_of_val(&z));
+    println!("size of `i` in bytes: {}", std::mem::size_of_val(&i));
+    println!("size of `f` in bytes: {}", std::mem::size_of_val(&f));
+}