Communication Training for Caregivers In Advanced Care Planning

Inclusion Criteria: Part 1: Informal caregivers: * Current self-reported informal cancer caregivers (IC) to a patient with a primary malignant brain tumor as per clinician judgment or as per EMR * English fluency: Self-report by participant identifying English as the preferred language for healthcare, and self-reported degree of fluency as speaking English "Very well." * age ≥ 18 * has access to a computer or smartphone with a webcam and internet connection Patients: * English-speaking as per EMR * Able to provide informed consent, a determination that will be made in assistance with the patient's medical team. Part II: Informal caregivers: * Current self-reported IC to an MSK patient with a (1) primary malignant brain tumor or (2) leptomeningeal metastasis of a solid tumor, as per clinician judgment or as per EMR. * English fluency: Self-report by identifying English as the preferred language for healthcare, and self-reported degree of fluency as speaking English "Very well." * Age \>18 as per self report * Access to a computer or smartphone with a webcam and internet connection as per self report Exclusion Criteria: * None