“The 1s, 2s, and 3s of COPD” from the COPD Foundation provides patients with answers to questions they are likely to have about their diagnosis. It defines chronic obstructive pulmonary disease in simple terms, explains what causes it, and describes what’s involved with spirometry testing. It also provides information on treatments, flare-ups, and ways to improve breathing. A glossary at the end can also be useful to patients trying to make sense of words they are hearing during their appointments. The brochure is available at: https://www.copdfoundation.org/pdfs/123s-of-COPD.pdf.