Book excerpt: This new second edition includes two entirely new chapters on selecting vocabulary words for study and vocabulary instruction for English Language Learners. In addition, every chapter has been substantially updated to incorporate discussion of next-generation standards. Incorporating the newest research in vocabulary acquisition into the four-part model of vocabulary instruction that made the first edition a bestseller, this edition emphasizes vocabulary as an important tool in meeting the needs of increasingly diverse students K-12. It also includes new instructional approaches to teaching vocabulary that have been developed and classroom-tested since the release of the first edition.