According to the four sources provided the authors focus on different tribes such as the Pueblo and Inca tribes.The Pueblo people had a well built city, that was later discovered.It was estimated that around one hundred people lived there,but the city had continued to expand.The Pueblo people used resources such as yucca fiber and plants for basket making, sandles, and were even eaten.They also made other goods such as the cradleboard and were traders and artists.The sources also go on to explain how the Incas were experts in building and were skilled stonemasons, the Inca were such experts that their buildings did not require cement to hold.The Inca tribes were a very advanced society, but they were exposed to other civilizations such as the Pueblos, who set the example for building shelters, roads ,and uing farming techniques.