The research aims to measure the effect of interior design for the reading rooms on the efficiency of the use of the library and seeks to verify many of the assumptions :
1- There is a trend towards the design variables of the reading rooms.
2- There is a strong correlation between the design variables of the reading room space and efficiency use.
the research applied of libraries and their users of Kafr el-Sheikh University in the academic year 2013/2014, using a sample of 379 user. the following statistical methods was used: duplicates, and percentages, and standard deviations, and the correlation coefficient (Pearson), and the coefficient of verification, and T- test