I think this dictionary/thesaurus is deifinitely worth purchasing for those who like to expand on their knowledge of Spanish. I like how David Burke gives explanations on how certain idioms and words came about. I also liked the fact that at the end of the book, he put in some of the "Naughty Spanish" from his other book, Street Spanish 3: The Best of Naughty Spanish. I musn't forget, either, about the illustrations because they are so hilarious. So anyway, you guys, compren el libro. Uds. pueden darme gracias mas tarde!!