Estudiantes de secundaria o universitarios que estudian y leen juntos en la biblioteca. Uso del estudiante portátil en la biblioteca . - Foto e imágenes de stock

Tired student taking online classes, he is confused and staring at the computer screen

Pensive schoolchildren sitting at desks with laptops in school

Tired student falling asleep over the desk, he is sad and exhausted

Children, education and learning concept - student boy with book writing to notebook at home

Serious Investors have a headache while working on the desk. Accounting and Financial concept.

Serious Investors have a headache hold pen working on the desk. Accounting and Financial concept.

Tired businessman at workplace in office holding his headache or angry. Overworking, making mistake, stress, termination, fail, bad, sad tired or depression concept

Serious Investors have a headache hold pen working on the desk. Accounting and Financial concept.

Unemployed people headache, fail because not find a job and tired on hot days. Quitting a job, businessman fired or leave a job concept.

Tired businessman at workplace in office holding his headache or angry. Overworking, making mistake, stress, termination, fail, bad, sad tired or depression concept

Serious Investors have a headache hold pen working on the desk. Accounting and Financial concept.

Tired businessman hold pencil at workplace in office and headache or angry. Overworking, making mistake, stress, termination, fail, bad, sad tired or depression concept