Better Vocabulary in 30 Minutes a Day (Better English Series)

I thought that this book was very helpful. It covers a wide range of words, and as soon as I tried the exercises that it provides, I found that it was really easy afterwards to use the words to spice up my essays and book reports at school.

This book, from the Better English Series, is a fairly decent book for businessmen to sharpen their vocabulary. Although some of the words may already be in the vocabulary of middle to high level businessmen, it reinforces those, as well as clearly teaching new words through its 30 minute program (which I find, one can finish in about 15 minutes). The vocabulary presented covers a broad range of words, and the book is overall a straight-ahead, no-nonsense guide for businessmen, as well as for people of occupations in which an expanded vocabulary is beneficial to their job.