Totally InTense Spanish Book 1: Las Pastillas de Oro - iBooks
Only for ipads, macs and iphones. An interesting mini-novel with vocabulary and grammar lessons for language beginners.
This book is written entirely in Spanish in the present tense, with additional tenses and grammatical elements gradually introduced in the story. New words and concepts are explained right there in the margins - no need for a dictionary. You can review basic concepts in the introduction; it's easy toggle back and forth between the explanations and your reading.