For most job applications, the only resume attachment you'll need is a good cover letter. However, in certain fields like writing, graphic design, or illustration, the interviewer may ask you to submit samples of your work. This practice is also common in the broadcast industry, where audio or video tapes are usually sent with a resume. It's best to limit your selection to a few high-quality samples; most interviewers won't have time to review too many items. Also, be sure to briefly mention the enclosure in your cover letter. In some cases, it may be acceptable to attach a letter of recommendation, but don't take one with you into an interview. And unless you're in the entertainment or modeling business, never send a photograph with your resume. Overall, use your judgment as to what's appropriate for your field; if in doubt, ask a career advisor or a friend in the industry what they might recommend.