Cucasian old bald male library worker in glasses and plaid shirt tapping and texting message on mobile phone. Senior professor typing and scrolling on smartphone in bibliotheca. Man chatting.
Bearded man using smartphone in library. Male student or researcher texting in bibliotheca with books.
Old Cucasian bald male library worker in glasses tapping and texting message on mobile phone. Man senior professor typing and scrolling on smartphone in bibliotheca. Studying concept.
Young businessman in library using tablet for research. Study concept.
Old Cucasian cheerful bald male library worker in glasses and plaid shirt tapping and texting message on mobile phone. Happy man senior professor typing and scrolling on smartphone in bibliotheca.
Young man using smartphone in library. Male student texting message with books in background.
Male student or researcher in glasses holding laptop computer and typing on keyboard in library room. Caucasian man turning face to camera, smiling cheerfully in bibliotheca while researching
Young man in glasses studying in library, taking notes and checking documents.
Young man in glasses studying in library, taking notes and checking documents.
Portrait of man in library, focused and tired. Close-up of serious face. Researcher in book-filled room.
Caucasian businessman studying in library with tablet device
Young woman in glasses texting on smartphone in city center. Female tapping and chatting on cellphone outdoors.