Chapter 7 "Task B: Catalog Display" Chapter 8 "Task C: Cart Creation" 8.1 Sessions, 8.2 More Tables, More Models, 8.3 Iteration C1: Creating a Cart 8.4 Iteration C2: Handling Errors, 8.5 Iteration C3: Finishing the Cart Chapter 9 "Task D: Checkout!" Chapter 10 "Task E: Shipping" Chapter 11 "Task F: Administrivia" Chapter 12 "Task T: Testing" 12.1 Tests Baked Right In, 12.2 Testing Models 12.3 Test