The American Translator Association offers two excellent and free resources to help anyone who is new to procuring translation (written word) or interpreting (spoken word) services, or would like to be more savvy about the process:

For those hiring court interpreters in Texas, Preciso has a handy visual guide to understand which qualifications are necessary for different proceedings:

Texas Court Interpreter Qualifications Quick Guide

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Preciso also offers free, just-for-fun downloads:

Preciso Mobile Wallpaper