The document discusses two main types of capsules - hard gelatin capsules and soft gelatin capsules. Hard gelatin capsules are two-piece caps consisting of a cap and body that are used to encapsulate powders. Soft gelatin capsules are one-piece capsules that can encapsulate liquids, suspensions, or semisolids. The manufacturing processes of each type are described along with their advantages and disadvantages. Hard gelatin capsules are more suitable for powders while soft gelatin capsules can encapsulate liquids and provide fast drug release.