Practice Makes Perfect Spanish Verb Tenses, Premium 3rd Edition is one of the books I recommend for my class.

Practice Makes Perfect Spanish Verb Tenses explains with clarity when and why a particular verb tense should be used–not just the correct forms. This book will also give you plenty of practice in using your new language skills, with more than 200 exercises.

The Premium Third Edition provides supporting material in the McGraw-Hill Education Language Lab app:

• Flashcards for all the verb and vocabulary lists in the book for study on-the-go
• Audio Recordings of the answers for all exercises
• Record-and-Replay function to compare your answers against native-speaker pronunciation (if your mobile device has this capability)
• Progress Tracker to keep track of your progress through the app