Professional liability (or) omissions (E&O) insurance is a type of coverage that protects professionals and businesses from claims arising due to negligence, mistakes, or failures in the services they provide. Those who work professional services are subject to a higher duty of care and responsibility because of their unique qualifications and expertise. E&O is  essential for various professions, including doctors, lawyers, accountants, and consultants, as it covers legal defense costs, settlements, and damages related to claims of inadequate work, misrepresentation, or failure to deliver services as promised.