501 Spanish Verbs (Barron’s 501 Verbs) is a great book for the serious for a person learning to speak Español. It is full of useful information about Spanish verbs and grammar from cover to cover. Christopher Kendris is the author of this awesome book. Dr. Christopher, an accomplished linguist, has worked as an interpreter and translator for the U.S. State Department at the American Embassy in Paris. He holds a Ph.D. from Northwestern University in Evanston, Illinois, and diplomas with Mention très Honorable at the Université de Paris. An invaluable book, which not only makes reading and writing good Spanish much easier, it helps to teach you grammar along the way. A really good Spanish verb book. Well laid out, it shows you the different tenses of 501 verbs on one page, plus has a very good intro to grammar at the beginning, which helps!