This title consists of two books, which are: Civil Engineering - Civil engineering is a multifaceted field that intersects with many aspects of our daily lives. It involves the planning, design, construction, and maintenance of infrastructure that supports modern society, including buildings, bridges, roads, railways, airports, water supply and treatment systems, wastewater treatment plants, and more. Civil engineers collaborate with architects, urban planners, environmental scientists, and other professionals to create functional and resilient structures that meet the needs of communities while considering factors like safety, sustainability, cost-effectiveness, and environmental impact. Environmental Engineering - Environmental engineering encompasses a broad range of disciplines, including but not limited to water resources engineering, air quality engineering, solid waste management, environmental chemistry, environmental microbiology, and ecological engineering. In water resources engineering, environmental engineers work on designing and managing systems for the treatment and distribution of drinking water, as well as the collection, treatment, and disposal of wastewater. They also deal with issues related to stormwater management, flood control, and erosion prevention.