This document provides an overview of key concepts in language testing and assessment. It defines language testing and distinguishes it from assessment. It outlines different types of tests (e.g. proficiency, achievement, diagnostic), testing methods (e.g. direct, indirect, discrete point, integrative), and scoring methods (e.g. norm-referenced, criterion-referenced, objective, subjective). It also contrasts classroom assessment with large-scale standardized testing and provides references for further information.