The brain's electrical signal activity can be measured by electroencephalograph (EEG) recording. The electrical signals represent the conditions of recorded brainwaves (oscillations), such as delta, theta, alpha, beta, and gamma waves. Each of the resulting waves will vary depending on the activity of the brain in progress. This EEG recording can be done to measure the condition of one's concentration. Someone who is concentrating will be at a frequency of 15-18Hz. One activity that requires concentration is reading activity. For maximum mastery of reading results, one must concentrate optimally. EEG recording of reading activity may indicate a person's concentration power while reading is indicated through the duration of concentration when reading activity is performed. The method used in this research is qualitative method. EEG data were taken from 16 respondents (18-22 years old) consisting of 8 males and 8 females. EEG recording was performed for 15 minutes with Open Brain Computer Interface assisted with a sampling rate of 200Hz with a maximum impedance of 15Ω. EEG data recording results are processed using EEGLab and EDF Browser. The results of this treatment will be analyzed to show the duration based on optimal concentration conditions, low concentrations, and non-concentrations, as well as differences in these conditions in males and females. It is expected that the results of this measurement can be used to determine the appropriate reading strategy so that reading activity more effective and efficient (brain friendly).