Explore a world of shapes in this vibrant, bilingual picture book from award-winning author-illustrator Duncan Tonatiuh From award-winning and beloved author-illustrator Duncan Tonatiuh comes ¡Felicidades! , a celebratory bilingual concept picture book of shapes featuring a birthday party. ¡Felicidades! includes a double gatefold finale reveal, and a brief author's note in English and Spanish that lends additional context. cuadrado-una mesa/square-a table circulo-un pastel/circle-a cake triangulo-gorritos/triangle-party hats ovalo-globos/oval-balloons rectángulo-regalos/rectangle-gifts diamante-un papalote/diamond-a kite medio circulo-rebanadas de fruta/half-circle-fruit slices pentágonos y hexágonos-un balón de fútbol/pentagons and hexagons-a soccer ball estrella-una piñata/star-a piñata corazón-una paleta/heart-a lollipop ¡Feliz cumpleaños!/Happy birthday!.