This document discusses menu engineering principles and strategies for improving menu profitability. It describes analyzing menu items based on their popularity and profitability, categorizing them as stars, puzzles, plowhorses, or dogs. Stars are popular and profitable, puzzles are profitable but not popular, plowhorses are popular but not profitable, and dogs are neither. The document recommends continually reevaluating menu items and prices based on this analysis. It provides strategies for each category, such as retaining stars, lowering prices for puzzles to increase popularity, raising prices of plowhorses, and removing dogs from the menu.