Super well organized, nicely designed and easy to use, All Spanish Verbs A to Z is similar to 501 Spanish Verbs but packing a little more of a punch grammar wise plus a LOT more verbs. And it's a smaller and lighter book! It contains grammatical explanations of all of the verbs tenses, along with full verb conjugations of 90 verbs. It provides definitions and a conjugation reference for over 4500 verbs, all or nearly all of the verbs in the Spanish language. Overall this book is a fantastic little reference for teachers and students alike, and something everyone should have.