This document discusses the selection, acquisition, and usage of e-resources in libraries. It defines e-resources as electronic materials that require computer access, including e-books, e-journals, databases, and websites. The document outlines different models for acquiring e-books and considerations for selecting and licensing databases and other e-resources. It also discusses measuring the value of e-resources through usage statistics and surveying library patrons. The conclusion emphasizes that integrating e-resources has become a best practice for modern libraries to meet user needs and expand their collections and services.