The present book is the result of our attempts to unite two things that we love, cats and learning English language, in a book that might teach children a lot of vocabulary and useful grammar in a funny, entertaining context. Carmen's cats and her pets always stand by her as she learns English, and we are convinced that you will also reach an advanced level of English if you learn with us. So have fun with your pets and have fun with these various exercises as well as amusing texts that we hope will bring you not only good grades, but a lot of knowledge and useful information and, of course, a smile on your face.