Funny teacher or professor with book stack. Thinking serious mature teacher. Falling books concept. Mature professor, middle aged teacher, bearded fun man. Books stacked fall - Foto e immagini stock

Funny teacher or professor with book stack. Thinking serious mature teacher. Mature professor, middle aged teacher, bearded fun man. Study concept. Teachers day

Funny teacher or professor with book stack. Thinking serious mature teacher. Falling books concept. Mature professor near educational books for exams at the university. Teachers day

Funny teacher or professor with book stack. Thinking serious mature teacher. Falling books concept. Mature professor near educational books for exams at the university. Teachers day

Funny teacher or professor with book stack. Thinking serious mature teacher. Falling books concept. Mature professor, middle aged teacher, bearded fun man. Books stacked fall

Portrait of a funny teacher or professor with book stack. Thinking serious mature teacher. Mature professor, middle aged teacher, bearded fun man

Portrait of a funny teacher or professor with book stack. Thinking serious mature teacher near educational books for exams at the university. Mature professor, middle aged teacher

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Serious teacher or professor with book stack. Thinking serious mature teacher. Mature professor, middle aged teacher, bearded fun man. Teachers day. Serious teacher, confident professor concept

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Young handsome bearded man scientist or professor with long beard and teacher glasses with red book or notepaper sitting at table with wooden cubes on grey background

Young handsome bearded man scientist or professor businessman with long beard in jacket holding red book or notepaper and pencil isolated on white background