Cultural content has become an important issue after the advent of intercultural communicative approach (ICC) in language teaching field. The current study analyzed cultural content of three mainstream intermediate level EFL textbooks. This study was carried out using Chen's (2004) and Lee's (2009) suggested themes for detecting big "C" and little "c" culture aspects. Big C represents series of statistics and facts such as art, geography, history, education, festivals, and customs of the target speech community; small c represents norms, beliefs, sociocultural variables such as age, sex, and social position (Lee, 2009). This study also analyzed the cultural categories including target culture, source culture and international culture based on Cortazzi and Jin's (1999) category and another category i.e. neutral culture based on Aliakbari's (2004) category. This was a qualitative-quantitative study and chi- square test was applied in it. It was found that generally both little "c" and big "C" are present in the textbooks. However, in all the three textbooks little "c" has gained higher frequency than big "C". It was also revealed that the percentage of little "c" in Top Notch is more than other books and little "c" percentage in Four Corners is the least.