Richard Little 
¡Nos encanta el rojo! (We Love Red!) [PDF ebook] 

The eye-catching color of red tints delicious apples, shiny toy cars, juicy tomatoes, and so much more in the world around us. Readers of this cheerful volume are invited to recognize red in well-known objects in each photograph as well as to review important vocabulary words in at-level sentences. A simple activity at the end of the book allows them to self-evaluate their mastery of this color concept.