Dump Trucks / Camiones de Volteo

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.

Daniel got the best birthday present in the world: his grandfather's magic briefcase! What tricks is it hiding? What surprises does it contain? Close your eyes and make a wish. This book is full of magic!

In graphic novel format, follows the adventures of Max Axiom as he explains the science behind photosynthesis.

Tensión, angustia, distimia, impaciencia, apuro, culpa, vergüenza, temores de toda clase, preocupación exagerada, pensamientos catastróficos, sentimientos de agitación, obsesiones, intranquilidad, taquicardia, sudores, parálisis del cuerpo, los repentinos y fuertes espasmos en piernas e incluso en el cuerpo entero, dificultad para concentrarte, irritabilidad, dolor estomacal, miedo de enfermar o de morir, cansancio físico y mental, fatiga, músculos tensos, agorafobia, dificultad para conciliar el sueño o permanecer dormido, miedos irracionales, hormigueos por varias parte del cuerpo...