This guide was produced by the National Clearinghouse for English Language Acquisition and Language Instructional Educational Programs (NCELA). NCELA, authorized under Title III of the No Child Left Behind Act of 2001 (NCLB), supports the Office of English Language Acquisition, Language Enhancement, and Academic Achievement for Limited English Proficient Students (OELA) of the US Department of Education in its mission to respond to Title III educational needs and implement NCLB as it applies to English language learners (ELLs). This Guide to the NCELA Resource Collection is designed to serve as an overview of the Resource Collection of the National Clearinghouse for English Language Acquisition and Language Instruction Educational Programs (NCELA)--a special collection of over 22,000 items addressing the education of English language learners (ELLs). Specifically, it addresses the Collection's contents, its organization and maintenance, and how to use it. The following sections are included in this guide: (1) About NCELA; (2) The NCELA Resource Collection and Scope Areas; (3) Managing the NCELA Resource Collection; and (4) Searching the NCELA Resource Collection. The following are appended: (1) Resource Pages; and (2) NCELA Quick Reference Guide.