Complex fluids (soft matter) play important role in various aspects of daily life and industrial processes. Learning to think effectively about complex fluids and dynamics of such systems enables one to understand and contribute to a wide range of interesting and important problems. It is hard to ignore complex fluids as we are surrounded by them in our daily routines, starting from the very essence of life. Our blood, the pool of all physiological activities is a colloidal suspension made of various cells dispersed in water rich in salt, proteins and globular constructs. The paint that protects our house, the milk we drink, the toothpaste we the pour on our toothbrush, the butter and mayonnaise we spread on our bread are made of nothing but colloids. In this class, starting from the simplest canonical example of soft matter (i.e. a single colloid) we will explore different experimental and computational methods to understand these complex systems better.