Clinical appointments are an opportunity to provide cancer survivors (defined as patients and survivors) and people in their communities (e.g. caregivers, family members, friends) with education about radon and radon testing. This is a pilot study to develop and evaluate the impact of a clinic-based intervention that educates cancer survivors and their caregivers/families about radon and radon testing. This study will enroll survivors, caregivers, and interested family members or friends in this intervention because they are important decision-makers with respect to the survivors' cancer care and well-being. This intervention would occur in clinics that treat lung cancer as well as clinics that treat cancers for which radon is being investigated as a contributor to their etiology (e.g. breast, skin melanoma, gastrointestinal).