White Papers

Envelope Size Guide Resource Guide

Learn how to determine the correct size of your envelope.

Envelopes vs. Postcards White Paper

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

USPS Promotions & Incentives White Paper

The 2019 USPS Promotions were designed to reward innovative mailers who bring excitement to mail. Learn about promotions details in our white paper.

Envelope Basics White Paper

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

How to Measure a #10 Envelope Resource Guide

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

Maximizing Your Donor Communications Resource Guide

Captivate your audience with science in your envelope design.

The Art & Science of Envelope Design Resource Guide

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

Transpromo Envelopes White Paper

Discover the potential of envelopes by turning your transactional mailer into an integrated marketing tool.

How To Create Successful Direct Mail Envelopes White Paper

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

Envelope Hot Spots Resource Guide

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