Smiling grey hair professor standing in lecture room and looking at camera — Stock photos

"Smiling grey hair professor standing in lecture room and looking at camera" is a stock image by IgorVetushko. It’s available in the following resolutions: 1000 x 667px, 2000 x 1335px, 6782 x 4526px. The minimum price for an image is 2.99$. Image in the highest quality is 6782 x 4526px, 300 dpi, and costs 9.99$.