Bildnachweis:

Porträts Claudia Gorzalka: FOTOBONN Christian Daitsche

Claudia und Alex singend: Petra Schmidt

Aufgerichtete Körperhaltung. C.Gorzalka

Theatervorhang :<a href="http://www.fotolia.com/id/1610959" title="curtain" alt="curtain">S</a> - Fotolia.com

Mikrophon:

<a href="http://www.fotolia.com/id/4093410" title="microphone and notes." alt="microphone and notes.">Rudolf Polle</a> - Fotolia.com

Callcenter 3

© Gernot Krautberger - Fotolia.com

Young teacher answers question

© Marion Wear - Fotolia.com

group of people negotiate at the desk

© endostock - Fotolia.com

business presentation

© Yuri Arcurs - Fotolia.com

Rotes Männchen lecture © ioannis kounadeas #4812453

© ioannis kounadeas - Fotolia.com

Sing Star © Meddy Popcorn #5475607

Geoeffneter Mund von Frau beim Singen © unpict #6676016 -Fotolia.com

Olga: Erika Schmidt