Palestrante caucasiano sorridente conversando com ouvinte afro-americano durante seminário na sala de conferências - Banco de fotos e imagens

Handsome african american speaker leaning on podium tribune during seminar in conference hall

Smiling african american lecturer talking to audience during seminar in conference hall and pointing on screen

Smiling african american lecturer talking to audience during seminar in conference hall

Cropped image of speaker gesturing and talking into microphone at podium tribune during seminar in conference hall

High angle view speaker sitting on stage during seminar in conference hall and talking to multicultural audience

African american lecturer talking to audience and gesturing during seminar in conference hall

Back view of journalists near handsome african american speaker talking in microphones

Back view of participant raising hand, lecturer sitting on stage in conference hall