This document describes the design of a box-type solar cooker. It discusses the aims and objectives of the solar cooker, which are to cook food using solar energy, reduce use of traditional stoves, and protect the local environment. It also reviews different types of solar cookers, including panel, box, and parabolic designs. The document outlines the key components of the box-type solar cooker, including an insulated black box with a glass top to admit sunlight. It discusses the advantages of solar cooking and various theoretical concepts involved in solar cooker design such as solar constants, zenith angles, and calculations for cooking power.