The book "Mapping the Globe Thermometer Wet Bulb Index (IBUTG)" offers a comprehensive analysis of working conditions outdoors, particularly in tropical climates. It is aimed at professionals in occupations exposed to high temperatures and related heat stress, such as farmers, construction workers, and postal carriers. The authors examine the effects of heat on productivity and the well-being of employees, presenting results from daily and monthly recordings of the IBUTG. This data is crucial for educating employers and employees about potential risks and developing appropriate measures to control and manage heat exposure. The book is a valuable tool for anyone involved in occupational safety and health management in hot environments.