Retrato del profesor riendo mostrando una divertida y juguetona expresión facial en la biblioteca de la escuela. Cabeza de hombre maduro o conferenciante confiado y confiable riéndose de una broma divertida en un centro comunitario. - Imágenes y videos de stock

Lecturer standing in library in front of bookshelf with a friendly smile. Portrait of a happy young man in university confident about learning and education. Knowledge is key for a bright future.

Portrait of a happy and intelligent male professor, researcher or author feeling confident with a big smile. University lecturer and literature professor standing in front of a library bookshelf.

Portrait of a smiling Asian female student wearing a blue hijab studying in a library, looking at camera and wearing casual clothes, in slow motion

Animation of book week text over caucasian female student holding book in library. book week and reading concept digitally generated video.

Animation of Caucasian man standing with hands on hips then holding his head in pain, with bookshelves in a library in the background, digital composite

Animation of clouds and markers moving over happy school children with books. children's book day, reading and education concept digitally generated video.

Lecturer standing in library in front of bookshelf with a friendly smile. Portrait of a happy young man in university confident about learning and education. Knowledge is key for a bright future.

Portrait of a happy and intelligent male professor, researcher or author feeling confident with a big smile. University lecturer and literature professor standing in front of a library bookshelf.

Portrait of an Indian man in a library. Elderly professor or teacher with moustache is pleased with the research he has done in front of a book shelf. Learning and education in the senior years

Senior male librarian laughing inside a library with bookshelves in the background. Portrait of a stylish and trendy mature bookstore owner. Face of a college professor looking cheerful and friendly.

Portrait of a young university student standing in front of a library bookshelf. Caucasian female ready to do academic research for a thesis report and read literature for a successful education.

Closeup headshot of young woman showing a content facial expression in school library or community centre. Portrait of funky, cool student or teacher smiling. Passionate about education and learning.