Hi Pem816! Thanks for contributing to Wikipedia. Be our guest at the Teahouse! The Teahouse is a friendly space where new editors can ask questions about contributing to Wikipedia and get help from peers and experienced editors. I hope to see you there! Osarius (I'm a Teahouse host)
To add a tag to the image, select the appropriate tag from
this list, click on this link, then click "Edit this page" and add the tag to the image's description. If there doesn't seem to be a suitable tag, the image is probably not appropriate for use on Wikipedia. For help in choosing the correct tag, or for any other questions, leave a message on Wikipedia:Media copyright questions. Thank you for your cooperation. --ImageTaggingBot (talk) 04:05, 10 December 2013 (UTC)[reply
However, when I wanted to put the logo to page "ProEvents", I made a careless mistake to change the logo of page "Dentsu", but I have immediately changed the logo of page "Dentsu" to the original and correct one within around 10 seconds.
I do apologize for my careless mistake, and hope it didn't bring any inconvenience to wikipedia and the page "Dentsu".