Katie Kawa 
Cranes / Gruas [PDF ebook] 

Cranes are often very tall machines that are capable of lifting things high in the air. Readers learn all about these versatile machines in this bilingual book. Simple text presented in both standard Latin American Spanish and English explains the mechanics of various cranes in a way that is highly accessible for English language learners. With the help of bright photographs, this book makes learning about machines exciting and fun.