Public service advertisements (PSAs) aim to raise awareness about social issues rather than sell products. PSAs modify public attitudes by addressing topics like health, safety, and conservation. Common PSA campaigns promote issues such as blood donation, education, disease prevention, and civic participation. PSAs are typically created and distributed through partnerships between government agencies, non-profits, and private advertising and media companies who donate their services. An effective PSA keeps the target audience in mind and delivers a concise yet impactful message.