El gran desafio del caballero de la armadura oxidada / The Great Challenge of the Knight in Rusty Armor

The skeletal system is made up of bones. They support and protect your body and help it work. Some bones help you run, or pick up a pencil; others protect organs, like the skull, which protects your brain. Learn about bones, joints and more in this informative book.

Divided by period, this illustrated catalog introduces children to over 40 different kinds of dinosaurs. The index makes finding the species effortless.

Teaches basic principles of guitar playing including the parts of a guitar, holding the instrument, and step-by-step examples for playing chords and strumming patterns and single note melodies.

One of the most popular narrators of his time, Arthur Conan Doyle, was a visionary man with attitudes which were far ahead of his time. In this book we will know in depth his biography, his work, beyond the creation of the illustrious Sherlock Holmes, and his spiritualistic inquisitiveness.