Water is an integral part of our daily lives, yet most of us have little idea about how much water we use to maintain our lifestyles and the extent to which our lifestyles pollute and degrade water resources. The increasing occurrence of floods, droughts and water pollution incidents are reminders of our vulnerability in relation to water. Estimates suggest that global water demand could outstrip supply by the middle of the century if we continue with the current “business as usual” approach to water management. Melvyn Kay and Olcay Unver use Sustainable Development Goal (SDG) 6 as a framework to explore the concept of sustainable water resources management and how to improve water security. They provide a synthesis of water resources planning and management issues across all water-using sectors to dispel misunderstandings and myths and enable informed approaches to decision-making. In so doing, they offer an in-depth critical review of SDG6, including what it does and does not do. Case studies from around the world are used throughout the book to illustrate the key issues of water (in)security.