diff --git a/book.toml b/book.toml
index 25c67e4b..92d09724 100644
--- a/book.toml
+++ b/book.toml
@@ -72,6 +72,11 @@ line-numbers = true
 "unsafe/unsafe-functions.html" = "calling-unsafe-functions.html"
 "welcome-bare-metal.html" = "bare-metal.html"
 "welcome-day-4.html" = "concurrency.html"
+# Moving exercises between days
+"exercises/day-2/luhn.html" = "../day-1/luhn.html"
+"exercises/day-2/points-polygons.html" = "../day-3/points-polygons.html"
+"exercises/day-1/book-library.html" = "../day-2/book-library.html"
+"exercises/day-1/iterators-and-ownership.html" = "../day-2/iterators-and-ownership.html"
 # Send people to canonical URL instead of index.html
 "welcome.html" = "./"
 
diff --git a/src/SUMMARY.md b/src/SUMMARY.md
index 218f69df..632db31d 100644
--- a/src/SUMMARY.md
+++ b/src/SUMMARY.md
@@ -41,10 +41,43 @@
 
 # Day 1: Afternoon
 
+- [Control Flow](control-flow.md)
+  - [Blocks](control-flow/blocks.md)
+  - [if expressions](control-flow/if-expressions.md)
+  - [for expressions](control-flow/for-expressions.md)
+  - [while expressions](control-flow/while-expressions.md)
+  - [break & continue](control-flow/break-continue.md)
+  - [loop expressions](control-flow/loop-expressions.md)
+
 - [Variables](basic-syntax/variables.md)
   - [Type Inference](basic-syntax/type-inference.md)
   - [static & const](basic-syntax/static-and-const.md))
   - [Scopes and Shadowing](basic-syntax/scopes-shadowing.md)
+- [Enums](enums.md)
+  - [Variant Payloads](enums/variant-payloads.md)
+  - [Enum Sizes](enums/sizes.md)
+
+- [Novel Control Flow](control-flow/novel.md)
+  - [if let expressions](control-flow/if-let-expressions.md)
+  - [while let expressions](control-flow/while-let-expressions.md)
+  - [match expressions](control-flow/match-expressions.md)
+
+- [Pattern Matching](pattern-matching.md)
+  - [Destructuring Enums](pattern-matching/destructuring-enums.md)
+  - [Destructuring Structs](pattern-matching/destructuring-structs.md)
+  - [Destructuring Arrays](pattern-matching/destructuring-arrays.md)
+  - [Match Guards](pattern-matching/match-guards.md)
+
+- [Exercises](exercises/day-1/afternoon.md)
+  - [Luhn Algorithm](exercises/day-1/luhn.md)
+  - [Pattern Matching (TBD)]()
+
+# Day 2: Morning
+
+----
+
+- [Welcome](welcome-day-2.md)
+
 - [Memory Management](memory-management.md)
   - [Stack vs Heap](memory-management/stack-vs-heap.md)
   - [Stack Memory](memory-management/stack.md)
@@ -64,46 +97,21 @@
   - [Lifetimes](ownership/lifetimes.md)
   - [Lifetimes in Function Calls](ownership/lifetimes-function-calls.md)
   - [Lifetimes in Data Structures](ownership/lifetimes-data-structures.md)
-- [Exercises](exercises/day-1/afternoon.md)
-  - [Storing Books](exercises/day-1/book-library.md)
-  - [Iterators and Ownership](exercises/day-1/iterators-and-ownership.md)
+- [Exercises](exercises/day-2/morning.md)
+  - [Storing Books](exercises/day-2/book-library.md)
+  - [Iterators and Ownership](exercises/day-2/iterators-and-ownership.md)
 
-
-# Day 2: Morning
-
-----
-
-- [Welcome](welcome-day-2.md)
 - [Structs](structs.md)
   - [Tuple Structs](structs/tuple-structs.md)
   - [Field Shorthand Syntax](structs/field-shorthand.md)
-- [Enums](enums.md)
-  - [Variant Payloads](enums/variant-payloads.md)
-  - [Enum Sizes](enums/sizes.md)
 - [Methods](methods.md)
   - [Method Receiver](methods/receiver.md)
   - [Example](methods/example.md)
-- [Pattern Matching](pattern-matching.md)
-  - [Destructuring Enums](pattern-matching/destructuring-enums.md)
-  - [Destructuring Structs](pattern-matching/destructuring-structs.md)
-  - [Destructuring Arrays](pattern-matching/destructuring-arrays.md)
-  - [Match Guards](pattern-matching/match-guards.md)
-- [Exercises](exercises/day-2/morning.md)
+- [Exercises](exercises/day-2/afternoon.md)
   - [Health Statistics](exercises/day-2/health-statistics.md)
-  - [Points and Polygons](exercises/day-2/points-polygons.md)
 
 # Day 2: Afternoon
 
-- [Control Flow](control-flow.md)
-  - [Blocks](control-flow/blocks.md)
-  - [if expressions](control-flow/if-expressions.md)
-  - [if let expressions](control-flow/if-let-expressions.md)
-  - [while expressions](control-flow/while-expressions.md)
-  - [while let expressions](control-flow/while-let-expressions.md)
-  - [for expressions](control-flow/for-expressions.md)
-  - [loop expressions](control-flow/loop-expressions.md)
-  - [match expressions](control-flow/match-expressions.md)
-  - [break & continue](control-flow/break-continue.md)
 - [Standard Library](std.md)
   - [Option and Result](std/option-result.md)
   - [String](std/string.md)
@@ -119,7 +127,6 @@
   - [Paths](modules/paths.md)
   - [Filesystem Hierarchy](modules/filesystem.md)
 - [Exercises](exercises/day-2/afternoon.md)
-  - [Luhn Algorithm](exercises/day-2/luhn.md)
   - [Strings and Iterators](exercises/day-2/strings-iterators.md)
 
 
@@ -149,6 +156,7 @@
   - [Closures: Fn, FnMut, FnOnce](traits/closures.md)
 - [Exercises](exercises/day-3/morning.md)
   - [A Simple GUI Library](exercises/day-3/simple-gui.md)
+  - [Points and Polygons](exercises/day-3/points-polygons.md)
 
 # Day 3: Afternoon
 
diff --git a/src/control-flow/novel.md b/src/control-flow/novel.md
new file mode 100644
index 00000000..9205e76b
--- /dev/null
+++ b/src/control-flow/novel.md
@@ -0,0 +1,8 @@
+# Novel Control Flow
+
+Rust has a few control flow constructs which differ from other languages. They
+are used for pattern matching:
+
+- `if let` expressions
+- `while let` expressions
+- `match` expressions
diff --git a/src/exercises/Cargo.toml b/src/exercises/Cargo.toml
index 72c3e58c..41d61d04 100644
--- a/src/exercises/Cargo.toml
+++ b/src/exercises/Cargo.toml
@@ -8,30 +8,30 @@ publish = false
 name = "for-loops"
 path = "day-1/for-loops.rs"
 
-[[bin]]
-name = "book-library"
-path = "day-1/book-library.rs"
-
-[[bin]]
-name = "points-polygons"
-path = "day-2/points-polygons.rs"
-
 [[bin]]
 name = "luhn"
-path = "day-2/luhn.rs"
+path = "day-1/luhn.rs"
+
+[[bin]]
+name = "book-library"
+path = "day-2/book-library.rs"
 
 [[bin]]
 name = "strings-iterators"
 path = "day-2/strings-iterators.rs"
 
-[[bin]]
-name = "safe-ffi-wrapper"
-path = "day-3/safe-ffi-wrapper.rs"
-
 [[bin]]
 name = "simple-gui"
 path = "day-3/simple-gui.rs"
 
+[[bin]]
+name = "points-polygons"
+path = "day-3/points-polygons.rs"
+
+[[bin]]
+name = "safe-ffi-wrapper"
+path = "day-3/safe-ffi-wrapper.rs"
+
 [[bin]]
 name = "dining-philosophers"
 path = "concurrency/dining-philosophers.rs"
diff --git a/src/exercises/day-1/afternoon.md b/src/exercises/day-1/afternoon.md
index f194e2d3..31e2f66e 100644
--- a/src/exercises/day-1/afternoon.md
+++ b/src/exercises/day-1/afternoon.md
@@ -2,9 +2,9 @@
 
 We will look at two things:
 
-* A small book library,
+* The Luhn algorithm,
 
-* Iterators and ownership (hard).
+* An exercise on pattern matching.
 
 <details>
 
diff --git a/src/exercises/day-2/luhn.md b/src/exercises/day-1/luhn.md
similarity index 100%
rename from src/exercises/day-2/luhn.md
rename to src/exercises/day-1/luhn.md
diff --git a/src/exercises/day-2/luhn.rs b/src/exercises/day-1/luhn.rs
similarity index 100%
rename from src/exercises/day-2/luhn.rs
rename to src/exercises/day-1/luhn.rs
diff --git a/src/exercises/day-1/solutions-afternoon.md b/src/exercises/day-1/solutions-afternoon.md
index 42366aeb..c8bff12c 100644
--- a/src/exercises/day-1/solutions-afternoon.md
+++ b/src/exercises/day-1/solutions-afternoon.md
@@ -1,9 +1,13 @@
 # Day 1 Afternoon Exercises
 
-## Designing a Library
+## Luhn Algorithm
 
-([back to exercise](book-library.md))
+([back to exercise](luhn.md))
 
 ```rust
-{{#include book-library.rs}}
+{{#include luhn.rs}}
 ```
+
+## Pattern matching
+
+TBD.
diff --git a/src/exercises/day-1/book-library.md b/src/exercises/day-2/book-library.md
similarity index 100%
rename from src/exercises/day-1/book-library.md
rename to src/exercises/day-2/book-library.md
diff --git a/src/exercises/day-1/book-library.rs b/src/exercises/day-2/book-library.rs
similarity index 100%
rename from src/exercises/day-1/book-library.rs
rename to src/exercises/day-2/book-library.rs
diff --git a/src/exercises/day-1/iterators-and-ownership.md b/src/exercises/day-2/iterators-and-ownership.md
similarity index 100%
rename from src/exercises/day-1/iterators-and-ownership.md
rename to src/exercises/day-2/iterators-and-ownership.md
diff --git a/src/exercises/day-2/solutions-afternoon.md b/src/exercises/day-2/solutions-afternoon.md
index bf9601bd..45c10529 100644
--- a/src/exercises/day-2/solutions-afternoon.md
+++ b/src/exercises/day-2/solutions-afternoon.md
@@ -1,13 +1,5 @@
 # Day 2 Afternoon Exercises
 
-## Luhn Algorithm
-
-([back to exercise](luhn.md))
-
-```rust
-{{#include luhn.rs}}
-```
-
 ## Strings and Iterators
 
 ([back to exercise](strings-iterators.md))
diff --git a/src/exercises/day-2/solutions-morning.md b/src/exercises/day-2/solutions-morning.md
index 6f765b99..a62cd4a3 100644
--- a/src/exercises/day-2/solutions-morning.md
+++ b/src/exercises/day-2/solutions-morning.md
@@ -1,9 +1,9 @@
 # Day 2 Morning Exercises
 
-## Points and Polygons
+## Designing a Library
 
-([back to exercise](points-polygons.md))
+([back to exercise](book-library.md))
 
 ```rust
-{{#include points-polygons.rs}}
+{{#include book-library.rs}}
 ```
diff --git a/src/exercises/day-3/morning.md b/src/exercises/day-3/morning.md
index d6a19da2..974ec153 100644
--- a/src/exercises/day-3/morning.md
+++ b/src/exercises/day-3/morning.md
@@ -1,6 +1,8 @@
 # Day 3: Morning Exercises
 
-We will design a classical GUI library traits and trait objects.
+We will design a classical GUI library using traits and trait objects.
+
+We will also look at enum dispatch with an exercise involving points and polygons.
 
 <details>
 
diff --git a/src/exercises/day-2/points-polygons.md b/src/exercises/day-3/points-polygons.md
similarity index 100%
rename from src/exercises/day-2/points-polygons.md
rename to src/exercises/day-3/points-polygons.md
diff --git a/src/exercises/day-2/points-polygons.rs b/src/exercises/day-3/points-polygons.rs
similarity index 100%
rename from src/exercises/day-2/points-polygons.rs
rename to src/exercises/day-3/points-polygons.rs
diff --git a/src/exercises/day-3/solutions-morning.md b/src/exercises/day-3/solutions-morning.md
index 069b0eeb..df80c3cf 100644
--- a/src/exercises/day-3/solutions-morning.md
+++ b/src/exercises/day-3/solutions-morning.md
@@ -7,3 +7,11 @@
 ```rust
 {{#include simple-gui.rs}}
 ```
+
+## Points and Polygons
+
+([back to exercise](points-polygons.md))
+
+```rust
+{{#include points-polygons.rs}}
+```
diff --git a/src/running-the-course/course-structure.md b/src/running-the-course/course-structure.md
index fe44905f..627e4675 100644
--- a/src/running-the-course/course-structure.md
+++ b/src/running-the-course/course-structure.md
@@ -4,9 +4,9 @@
 
 The course is fast paced and covers a lot of ground:
 
-* Day 1: Basic Rust, ownership and the borrow checker.
-* Day 2: Compound data types,  pattern matching, the standard library.
-* Day 3: Traits and generics, error handling, testing, unsafe Rust.
+* Day 1: Basic Rust, syntax, control flow, creating and consuming values.
+* Day 2: Memory management, ownership, compound data types, and the standard library.
+* Day 3: Generics, traits, error handling, testing, and unsafe Rust.
 
 ## Deep Dives
 
diff --git a/src/welcome-day-1.md b/src/welcome-day-1.md
index 48607df4..39cea21b 100644
--- a/src/welcome-day-1.md
+++ b/src/welcome-day-1.md
@@ -6,10 +6,10 @@ today:
 * Basic Rust syntax: variables, scalar and compound types, enums, structs,
   references, functions, and methods.
 
-* Memory management: stack vs heap, manual memory management, scope-based memory
-  management, and garbage collection.
+* Control flow constructs: `if`, `if let`, `while`, `while let`, `break`, and
+  `continue`.
 
-* Ownership: move semantics, copying and cloning, borrowing, and lifetimes.
+* Pattern matching: destructuring enums, structs, and arrays.
 
 <details>
 
diff --git a/src/welcome-day-2.md b/src/welcome-day-2.md
index 62b48fc3..a86e6dbe 100644
--- a/src/welcome-day-2.md
+++ b/src/welcome-day-2.md
@@ -2,12 +2,12 @@
 
 Now that we have seen a fair amount of Rust, we will continue with:
 
-* Structs, enums, methods.
+* Memory management: stack vs heap, manual memory management, scope-based memory
+  management, and garbage collection.
 
-* Pattern matching: destructuring enums, structs, and arrays.
+* Ownership: move semantics, copying and cloning, borrowing, and lifetimes.
 
-* Control flow constructs: `if`, `if let`, `while`, `while let`, `break`, and
-  `continue`.
+* Structs and methods.
 
 * The Standard Library: `String`, `Option` and `Result`, `Vec`, `HashMap`, `Rc`
   and `Arc`.