Middelste leeftijd peinzende zakenman permanent in lege kantoor - Stockfoto’s en -afbeeldingen

Pensive mature man holding digital tablet and looking away isolated on grey

Feeling confident. Concentrated mature engineer in glasses is sitting at table while looking aside thoughtfully. He is holding pencil in his hands

Attentive middle aged male businessperson is sitting on couch. He looking down, clenching his fist and hardly thinking

Exhausted businessman is sitting on couch and trying to take off necktie. His glance full of desperation

Businessman thinking.

Troubled businessman in formal wear sitting in armchair and working with laptop

Welcome to my presentation. Innovation for creating smart future. Business education. Serious businessman. Education for adults. Self education. Teacher lecturer speaker. Intelligent concept.