This document discusses the fundamentals of collection development and e-resource management in digital libraries. It covers topics such as selecting materials, acquiring materials, assessing collections, and maintaining collections. It also discusses emerging trends like the use of technology, social media, eBooks, and e-lending in collection development and management. The document provides examples of elements that can be included in a collection development policy, such as selection criteria, acquisition procedures, and evaluation methods. It emphasizes assessing user needs, having clear responsibilities for collection management, and criteria for ongoing selection, evaluation and maintenance of materials.