What are the key elements of an effective LinkedIn headline?

An effective LinkedIn headline should be concise, compelling, and accurate, reflecting who you are professionally. It should include relevant industry-specific hard skills (which recruiters search for) and a value proposition or achievement that demonstrates your unique contribution. The headline appears everywhere your photo does, making it the second most important profile element to optimize. Avoid using LinkedIn's default headline or phrases like 'actively seeking,' and instead focus on your desired position title combined with specific skills that highlight your expertise.