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Direct mail is a proven winner. Learn when, how and why to use either an envelope or postcard in your campaign.

Learn how to select, measure and order your envelopes with confidence with our Envelope Basics guide.

Discover how to accurately measure and provide measurements for your #10 envelope.

Captivate your audience with science in your envelope design.

The difference between an effective mailpiece and one that lands in the trash may come down to two things: Art and Science.

Tension Corporation provides direct mail managers, writers, designers and creative directors with tools for creating successful outer envelopes (OEs).

3 minutes and 33 seconds is all you have to convince your mail recipient to open your envelope.