How One 3-D Marketing Campaign Generated an 18% Response Rate—and Why This Proven Strategy Is Becoming Even More Powerful in the AI Age
Key Takeaways 3-D direct mail gets opened because it creates curiosity before your prospect reads a single word. Oversized or unusual packages often bypass gatekeepers who routinely discard letters, postcards, and brochures. Physical interaction dramatically increases attention, recall, and engagement. [...]