Insurance involves the equitable transfer of risk, where an insurer agrees to compensate an insured for a potential loss in exchange for a premium payment. The key parties are the insurer (the company), the insured (the policyholder), and the premium (the amount charged). Insurance is governed by acts and involves a contract between the insurer and insured regarding a specific insurable risk, with defined terms and conditions. For a risk to be insurable, it must be measurable, accidental in nature, and not catastrophic. Common types of insurance include life, property, liability, and guarantee policies.