diff --git a/assets/snippets/Coding.swift b/assets/snippets/Coding.swift
new file mode 100644
index 000000000..2fc5c6bfb
--- /dev/null
+++ b/assets/snippets/Coding.swift
@@ -0,0 +1,14 @@
+// Create types that automatically encode to JSON.
+
+import Foundation
+
+struct ScientificName: Codable {
+    var genus: String
+    var species: String
+    var subspecies: String?
+}
+
+let momiji = ScientificName(genus: "Acer", species: "palmatum")
+let jsonData = try JSONEncoder().encode(momiji)
+
+// {"genus":"Acer","species":"palmatum"}
diff --git a/assets/snippets/IfLet.swift b/assets/snippets/IfLet.swift
new file mode 100644
index 000000000..8159088a4
--- /dev/null
+++ b/assets/snippets/IfLet.swift
@@ -0,0 +1,16 @@
+// Easily reason about data that may or may not be present.
+
+struct ScientificName {
+    var genus: String
+    var species: String
+    var subspecies: String?
+
+    var description: String {
+        var text = "\(genus) \(species)"
+        if let subspecies {
+            // subspecies is guaranteed to be non-nil here.
+            text += "subsp. \(subspecies)"
+        }
+        return text
+    }
+}
\ No newline at end of file
diff --git a/assets/snippets/MapReduce.swift b/assets/snippets/MapReduce.swift
new file mode 100644
index 000000000..d9f4827ee
--- /dev/null
+++ b/assets/snippets/MapReduce.swift
@@ -0,0 +1,12 @@
+// Use functional programming techniques.
+
+import Foundation
+
+func squareWave(phase: Float, overtones: UInt) -> Float {
+    return (0...overtones)
+        .map {
+            let harmonic = Float($0 * 2 + 1)
+            return sinf(phase * harmonic) / harmonic
+        }
+        .reduce(0, +)
+}
\ No newline at end of file
diff --git a/assets/snippets/MultilineString.swift b/assets/snippets/MultilineString.swift
new file mode 100644
index 000000000..b7f396e83
--- /dev/null
+++ b/assets/snippets/MultilineString.swift
@@ -0,0 +1,18 @@
+// Multiline strings with string interpolation.
+
+let hello = "Hello, world!"
+let multilineString = """
+                  @@@         
+       @@          @@@@       
+    @@  @@@         @@@@@     
+     @@@@@@@@@       @@@@@    
+       @@@@@@@@@@    @@@@@@   
+         @@@@@@@@@@  @@@@@@   
+           @@@@@@@@@@@@@@@@@  
+ @           @@@@@@@@@@@@@@@  
+ @@@@@@        @@@@@@@@@@@@@  
+   @@@@@@@@@@@@@@@@@@@@@@@@@@ 
+     @@@@@@@@@@@@@@@@@@@@@@@@ 
+         @@@@@@@@@@@@@     @ 
+                       \(hello)
+"""