Bildquellennachweise für auf dieser Website genutzten Bilder:

© [Pressmaster] – Modern businessman explaining his ideas to colleagues at seminar – Stockfoto / shutterstock.com

© [AndrewJohnson] – Red-Werkzeugkasten – Stockfoto / istockphoto.com

© [swedeandsour] – Safe in Edelstahl – Stockfoto / istockphoto.com

© [studiocasper] – Bolzen und Nüssen (with clipping path) – Stockfoto / istockphoto.com

© Hamburg Messe und Congress / Rolf Otzipka

© 32 pixels 106137614 – December 11. Vector flat daily calendar icon. Date and time, day, month. Holiday. / Fotolia.com

© ake1150 127544664 – Aerial view on Munich old town hall in Germany. / Fotolia.com

© Alexander Limbach 119581548 – Herbst Special 3 Sale Templates / Fotolia.com

© alona_s 110558151 – Grid seamless pattern. Hexagonal cell texture. Honeycomb on white background. Speaker grille. Fashion geometric design. Graphic style for wallpaper, wrapping, fabric, apparel, print production. Vector / Fotolia.com

© andyller 44206980 – Datensicherung / Fotolia.com

© anyaberkut 180951723 – woman watching webinar online on computer, business education concept, coaching / Fotolia.com

© Branko Srot 163225083 – Wiesbaden, das Kurhaus und Spielbank. 4. Juli 2017. / Fotolia.com

© Coloures-Pic 97672166 – Kontaktoptionen / Fotolia.com

© contrastwerkstatt 94216919 – kollegen besprechen die unterlagen / Fotolia.com

© contrastwerkstatt 94729890 – selbstbewusste junge mitarbeiter im unternehmen / Fotolia.com

© d3images 94597132 – christmas ornaments hanging red isolated background / Fotolia.com

© denisismagilov 118705319 – Business planning in progress / Fotolia.com

© ecco 85284640 – Background with red velvet curtain and hand. Vector illustration / Fotolia.com

© Gajus 90247363 – Business partnership or teamwork / Fotolia.com

© goodluz 163392350 – Engineer and technician working together on drone in office / Fotolia.com

© goodluz 163392667 – Engineer and technician working together on drone in office / Fotolia.com

© goodluz 163911430 – Startup entrepreneur working on desktop in office / Fotolia.com

© goodluz 95560184 – Business people working in office on desktop computer / Fotolia.com

© JK-Design 81230921 – Strichmännchen / Zahnräder / Fotolia.com

© kasto 99524285 – Audience in the lecture hall. / Fotolia.com

© klesign 84512096 – Roter Play Button / Fotolia.com

© kreizihorse 87142301 – Account Circle / Fotolia.com

© kreizihorse 87167223 – Home / Fotolia.com

© kreizihorse 87243163 – Play / Fotolia.com

© kreizihorse 87261030 – Previous / Fotolia.com

© kreizihorse 87661936 – Film / Fotolia.com

© kreizihorse 90003761 – Tag / Fotolia.com

© La Gorda 102623949 – Water drinks icons vector set / Fotolia.com

© lemon_pie 142682956 – Realistic graduation cap and diploma scroll isolated on white background. Academic hat with tassel and university degree certificate. Vector illustration for announcement, banner, poster, flyer, ad. / Fotolia.com

© maciek905 79161553 – Programming code script abstract screen of software developer. / Fotolia.com

© Mapics 112789245 – Rathaus Hannover mit Spiegelung im Maschteich / Fotolia.com

© martialred 108317062 – Ship anchor or boat anchor flat icon for apps and websites / Fotolia.com

© Matej Kastelic 360095273 – Audience in the lecture hall / Shutterstock.com

© Matthias Enter 143026130 – Mega Iconset Perfect Designed Pictograms grey / Fotolia.com

© Matthias Enter 90670545 – stickman buld idea red / Fotolia.com

© Matthias Enter 91326434 – stickman idea question solution red / Fotolia.com

© Matthias Enter 91326704 – stickman gear alone working red / Fotolia.com

© Matthias Enter 91328216 – stickman jumping happy red / Fotolia.com

© Matthias Enter 91329073 – stickman pumping iron fitness red / Fotolia.com

© max_776 95137751 – Vector marker circles and arrows / Fotolia.com

© MH 106010949 – Zusammenarbeit / Fotolia.com

© MH 180363551 – Neujahr Gruss 2018 / Fotolia.com

© MH 80208745 – Zeit für Neues! / Fotolia.com

© my_stock 127142111 – extra breites Banner / Bordüre für Weihnachten mit Schneeflocken / Fotolia.com

© natara 65809949 – stadium in lights / Fotolia.com

© nd3000 81366261 – Two young handsome engineers working on electronics components / Fotolia.com

© nongkran_ch 115677081 – Vector illustration gear wheel, hexagons and circuit board, Hi-tech digital technology and engineering, digital telecoms technology concept. Abstract futuristic on dark blue color background / Fotolia.com

© pfpgroup 78011986 – Taschenrechner und Statistk / Fotolia.com

© philipus 169770246 – Castle of Dillenburg, Germany / Fotolia.com

© pixelkorn 166484864 – Rabatt Symbol / Fotolia.com

© pixelliebe 124881475 – Köln Dom Panorama mit Brücke / Fotolia.com

© pixelliebe 181283755 – Weihnachts Angebot Aktion Button Set / Fotolia.com

© pure-life-pictures 137952800 – Schloss Ahrensburg / Fotolia.com

© Rawf8 158786342 – High performance concept. 3d illustration / Fotolia.com

© REDPIXEL 168292340 – Website design. Developing programming and coding technologies. / Fotolia.com

© Robert Kneschke 67627586 – Leerer großer Raum für Büro oder Loft / Fotolia.com

© Sashkin 178639068 – Open gift box with red 50 percent discount on white background – Discount sale concept/ 3d rendering / Fotolia.com

© Sashkin 96008083 – Open gift box with red percent on white background / Fotolia.com

© Silvia Eder 83675394 – View over lake – Phönixsee / Fotolia.com

© sirtravelalot 150780881 – Teacher Explaining Something to Students / Shutterstock.com

© sirtravelalot 515883301 – Portrait of confident businessman sitting in seminar hall / Shutterstock.com

© Smileus 84988031 – Panorama of a colourful sunset on a green meadow / Fotolia.com

© Stillfx 86843067 – Blackboard / Fotolia.com

© Trueffelpix 61661991 – Flipchart Erfolgsweg / Fotolia.com

© Trueffelpix 79888576 – successful outcome / Fotolia.com

© Trueffelpix 85721496 – Ziele erreichen / Fotolia.com

© Trueffelpix 98542108 – Richtung – Leadership / Fotolia.com

© vege 72379724 – tech / Fotolia.com

© vege 74738756 – gear / Fotolia.com

© vege 74743493 – gear / Fotolia.com

© vgstudio 91624173 – Support phone operator in headset / Fotolia.com