Robert Heller

• Structure in architecture
• Essential Managers
• Managing change
• Business Masterminds
• Toma de Decisiones
• Bill Gates
• Roads to Success in Business (Business Masterminds)
• Estructuras para Arquitectos
• Como Tener Exito En Las Ventas
• Creating a Successful CV (Essential Managers)
• Jack Welch (Business Masterminds)
• Stephen Covey (Business Masterminds)