This book provides a quick, pattern-based reference for interpreting histologic changes in non-neoplastic liver. It is designed to guide the reader based on morphologic pattern and basic clinical information. Each chapter covers a broad but identifiable pat­tern of pathologic liver findings (e.g., “portal inflammation” or “steatosis”) and discusses the major disease entities that manifest as such a pattern. As liver biopsies can be complex and daunting, such an approach should improve the reader’s ability to identi­fy a likely diagnosis or differential and to distinguish among the possible disease enti­ties. Sample reports at the end of each chap­ter offer guidance on how to sign out cases.