What is the definitive guide to experiencing Route 66 according to Avy Kennedy?

The available content doesn’t directly address a definitive guide to experiencing Route 66 according to Avy Kennedy. However, I can share some popular tips for enjoying this iconic route:

• Plan your stops at historic landmarks and quirky roadside attractions.
• Sample local cuisine at diners and cafes along the way.
• Capture the scenery with plenty of photos, especially at sunset.
• Consider taking a road trip with friends or family for a memorable experience.

Would you like to know more about specific attractions or tips for your journey?