Merriam-Webster's Vocabulary Builder

Merriam-Webster’s Vocabulary Builder - Perfect for prepping for SAT, ACT, TOEFL, & TOEIC

The Vocabulary Builder Workbook: Simple Lessons and Activities to Teach Yourself Over 1,400 Must-Know Words

The Well-Spoken Thesaurus: The Most Powerful Ways to Say Everyday Words and Phrases (A Vocabulary Builder for Adults to Improve Your Writing and Speaking Communication Skills)