As a beneficiary of a trust, you have specific rights and need to understand the trust structure and management to protect your interests. Trusts are categorized into living trusts, which can be revocable or irrevocable, and testamentary trusts, established by will. The trustee is responsible for asset management, tax reporting, and providing accountings to beneficiaries, who can take legal action against a trustee if their fiduciary duties are violated.