No job interview is flawless. One of the good techniques for preparing for your job interview is learning from others’ mistakes and knowing how to avoid these common mistakes.You’ve worked hard to get that job interview.You faced many obstacles to arrive at this stage. Now it is your responsibility to take it to success. 1. Lack of Preparation: Lack of knowledge is the first mistake you should avoid. One has to prepare himself making a good study on the company, the position and for every related questions that may be asked. 2. Failure to highlight achievements: you should provide good