Biografias porque si/ Biographies

Explore outer space and learn about stars, galaxies, planets, asteroids and how these bodies are all related to one another. Featured in this book are photographs from outer space and related vocabulary.

This guide gathers a selection of more than 500 species of vertebrate animals cataloged and arranged in colored illustration. It is an exhaustive and complete guide that provides precise information about each species, and that captures all the beauty and diversity of the vertebrate world in spectacular design and with enthralling visuals.

This book is a comprehensive, practical presentation of the principles of behavior modification and guidelines for their application. It teaches forms of behavior modification ranging from helping children learn necessary life skills to training pets, to solving personal behavior problems.

In this book, children learn how we can tell if something is shiny or dull and which materials have these properties.