International Open Academy provides more than 150 online courses in a wide range of subjects to suit everyone. IOA is proud to work with an international team of course instructors who bring a wealth of hands-on knowledge across many industries from TEFL/TESOL teaching to cooking lessons. More than 800,000 students from 139 countries have already studied with us and we welcome more than 11,000 new students every month. All our courses are accredited, so our students can be confident their studies meet professional standards and are internationally recognized. These online lessons can be studied anywhere, at any time, from a PC, laptop, tablet or mobile device. On the completion of the course, students receive PDF certification.