| 978-9962-629-00-9 | Cuquita la Generosa = Cookie the Generous | Piggy Press | Patricia Alvarado V.
| 2001 |
| 978-9962-629-01-6 | Pablo pakeet an his friends | Piggy Press | Patricia Alvarado V.
| 2001 |
| 978-9962-629-02-3 | Pablo Periquito y sus amigos | Piggy Press | Patricia Alvarado V.
| 2001 |
| 978-9962-629-03-0 | Cuquita la Generosa : libro de actividades bilingues = Cookie the Generous : bilingual activity book | Piggy Press | Patricia Alvarado V.
| 2001 |
| 978-9962-629-04-7 | ¡Alfredito tiene aletas! = Freddy swins like a fish | Piggy Press | Patricia Alvarado V.
| 2002 |
| 978-9962-629-05-4 | ¡Ho Choy encuentra un tesoro! = ¡Ho Choy finds a treasure! | Piggy Press | Patricia Alvarado V.
| 2002 |
| 978-9962-629-06-1 | It' s a dog' s life : so you might as well enjoy it! Lessons in assertiveness. | Piggy Press | Andrea E. Alvarado V.
Patricia Alvarado V.
| 2002 |
| 978-9962-629-08-5 | Guillermo gusa1 y la gran inundación = William Worn and the great flood | Piggy Press | Patricia Alvarado V.
| 2002 |
| 978-9962-629-09-2 | Revolución en el recreo = Recess revolution | Piggy Press | Patricia Alvarado V.
| 2003 |
| 978-9962-629-11-5 | Guillermo gusa1 de pesca = William Worn goes fishing | Piggy Press | Patricia Alvarado V.
| 2003 |
| 978-9962-629-12-2 | Guillermo gusa1 y la guerra de mil hojas = William Worn and the war of a thousand leaves | Piggy Press | Patricia Alvarado V.
| 2003 |
| 978-9962-629-14-6 | Guillermo gusa1 terranauta = William worm earthnaut | Piggy Press | Patricia Alvarado V.
| 2003 |
| 978-9962-629-15-3 | Guillermo gusa1 se enamora = William worm falls in love | Piggy Press | Patricia Alvarado V.
| 2003 |
| 978-9962-629-16-0 | La princesita del arco iris = The little rainbow princess | Piggy Press | Patricia Alvarado V.
| 2003 |
| 978-9962-629-17-7 | Guillermo gusa1 se enfrenta al virus = Wiiliam Worm meets the virus | Piggy Press | Patricia Alvarado V.
| 2003 |
| 978-9962-629-18-4 | El rei1 sin sombra = The Shadeless Kingdom | Piggy Press | Patricia Alvarado V.
| 2003 |
| 978-9962-629-19-1 | Ho Choy finds a treasure * Ho Choy encuentra un tesoro | Piggy Press | Patricia Alvarado V.
| 2003 |
| 978-9962-629-24-5 | Guillermo Gusa1 se toma un día = William Worm takes a day off | Piggy Press | Patricia Alvarado V.
| 2004 |
| 978-9962-629-26-9 | Guillermo gusa1 va a la playa = William worm goes to the beach | Piggy Press | Patricia Alvarado V.
| 2005 |
| 978-9962-629-28-3 | Alberto, el águila harpía, se enfrenta a los cazadores con dos patas = Alberto the harpy eagle, meets the two footed hunters | Piggy Press | Patricia Alvarado V.
| |
| 978-9962-629-31-3 | Guillermo gusa1 se enfrenta al grillo = William worm neets the cricket | Piggy Press | Patricia Alvarado V.
| 2005 |
| 978-9962-629-35-1 | Pablo periquito y sus amigos = Pablo parakeet and his friends | Piggy Press | Patricia Alvarado V.
| 2006 |
| 978-9962-629-37-5 | Candy la cucaracha generosa = Candy the generous cock roach | Piggy Press | Patricia Alvarado V.
| 2006 |
| 978-9962-629-38-2 | Benbon | Piggy Press | Patricia Alvarado V.
| 2006 |
| 978-9962-629-39-9 | Programa educativo : sembrando semillas de conciencia ambiental = Educational program : planting seeds of enviromental awareness | Piggy Press | Patricia Alvarado V.
| 2006 |