Sheldon Burshtein retired in 2017 from his practice of intellectual property and technology law at the major law firm in Toronto where he began in 1978. Sheldon earned an engineering degree and two law degrees from McGill University. He is qualified as a lawyer, patent agent, trade-mark agent, and licensing professional. Sheldon was continuously recognized in numerous domestic and peer review surveys as a leader of the international intellectual property bar. Sheldon authored a six-volume treatise on Internet and social media law, and authored and co-authored several other books. His interest in the legal issues presented by social media naturally led him to address President Trump, Twitter & The Law.