Muž na rušné tvář čtení knihy, regály na pozadí. Koncepce školství a vědy. Vědec sedí u stolu s brýle a přesýpací hodiny. Učitel nebo student s vousy studovat v knihovně. - Stock fotografie a obrázky

Man on busy face reading book, bookshelves on background. Education and science concept. Scientist reading, sits at table with mug and hourglass. Teacher or student with beard studying in library.

Man on busy face reading book, bookshelves on background. Education and science concept. Teacher or student with beard studying in library. Scientist reading, sits at table with mug and hourglass.

Man, scientist peeking out of books. Teacher or student with beard studying in library. Man on serious and strict face watching time is going over, bookshelves on background. Time flow concept.

Teacher or student with beard wears eyeglasses, sits at table with books, defocused. Man on excited face between piles of books in library, bookshelves on background. Scientific discovery concept.

Writer working on new book with bookshelves on background. Man with beard and strict face sit in library and work with typewriter, close up. Writers routine concept. Author types novel or poem.

Man on shocked face between piles of books, while studying in library, bookshelves on background. Deadline concept. Teacher or student with beard sits at table with glasses, defocused.

Man on busy thoughtful face reading book, bookshelves on background. Teacher or student with beard studying in library between piles of books. Education and science concept.

Teacher or student with beard studying in library. Man on busy face reading book, bookshelves on background. Education and science concept. Scientist reading, sits at table with mug and hourglass.

Time flow concept. Teacher or student with beard studying in library. Man, scientist in glasses looks at hourglass. Man on serious face watching time is going over, bookshelves on background.

Man on happy face between piles of books in library, bookshelves on background. Teacher or student with beard wears eyeglasses, sits at table with books, defocused. Scientific research concept.

Teacher or student with beard wears eyeglasses, sits at table with books, defocused. Scientific research concept. Man on thoughtful face between piles of books in library, bookshelves on background.

Choosing and exchange currency. watch out for something. mobile marketing. broker await exchange result. man reading shocking news. businessman responding important email. boss writing sms to manager.

Learning and education concept. Man reading and learning new ideas.

Relaxing and reading concept. Hipster relaxing with book and cup of tea.

Owner of small business. Man bearded businessman sit office read business report. Analyzing financial report. Accounting and banking. Guy banker accountant learn indicators markers. Financial report.

Take break to check social networks. Online relax. Self care. Relaxation techniques. Mental wellbeing and relax. Man bearded manager formal suit sit lotus pose relaxing. Application smartphone.

Great laptop for daily tasks. Businessman using laptop for business. Bearded man working at his laptop in office. Professional computer repairman or tech worker.

Mature businessman read note for boss. Boss and employee. Secretary with boss. Businesspeople. collaboration. Formal fashion dress code. Business couple in office. Bearded man and woman boss.