The influence of friction on fiber cohesion, configuration, and evenness of fiber assemblies is discussed. The static cohesion of card sliver is higher for cottons having higher coefficients of friction. As drawing proceeds, the difference between the cohesion of high and low friction cottons decreases and it again increases significantly in rovings due to the introduction of twist. About 50% of the hooks are removed by this time. They reach the second head drawing stage. Fiber entanglements and hooks are easily removed in fibers which have low coefficients of friction. Higher friction in fibers reduces the minimum twist of cohesion and increases yarn irregularity. -- AATA