¿Por qué hay tantas alergias en primavera? ¿Por qué las flores tienen color? Preguntas comunes y respuesta no tan fáciles; te ayudamos a descubrirlo con ciencia de una forma sencilla. 
 
Why are there so many alergies during spring? Why the flowers have colors? Easy questions with difficult answers unless you know from science and are able to explain it in simple words, this book will help with that.