Jürgen Schabel © Universität Bamberg
lenetsnikolai © Fotolia
Andrey Burmakin © Fotolia
visivasnc © Fotolia
patpitchaya © Fotolia
Thomas Francois © Fotolia
level17 © iStock
FatCamera © iStock
gradyreese © iStock
Woman with tablet computer in cafe shop © Africa Studio – stock.adobe.com
important documents 4 © stockphoto-graf – stock.adobe.com
page of calendar © afishman64 – stock.adobe.com
calendar and pencil close-up © mizar_21984 – stock.adobe.com
Woman with glasses in library make comments © redwine2001 – stock.adobe.com
Signing document © DragonImages – stock.adobe.com
working woman © pongam – stock.adobe.com
Calendar. © BillionPhotos.com – stock.adobe.com
Typewriter closeup - Focus on question mark key © xmaxxmax – stock.adobe.com
Businesswoman in wheelchair at the desk in her office. © Halfpoint – stock.adobe.com
Arbeitsplatz mit rotem Mousepad © Peter Atkins – stock.adobe.com
Outdoor portrait of young happy smiling man walking on street and using smart phone. Looking forward. Model wearing stylish red tartan shirt. City lifestyle. Sunny day. Copy space for text. Waist up © Victoria Chudinova – stock.adobe.com
Handsome young man giving a speech at a conference © lightpoet – stock.adobe.com
hands holding a puzzle ©Pakhnyushchyy – stock.adobe.com