The document provides tips for writing effective LinkedIn InMails. It emphasizes personalizing messages by mentioning connections, groups, employers, schools, or interests in common. It advises avoiding asking for resumes or referrals in the first message and not pitching roles below the candidate's level. The best time to send is Thursday mornings. Subject lines should be short, positive, and mention something in the candidate's profile. Analytics can help optimize the approach by examining response and acceptance rates.