File:Microsoft Office 2013-2019 logo and wordmark.svg - Wikipedia

File:Microsoft Office logo (2013–2019).svg - Wikimedia Commons

Category:Blue Microsoft logos - Wikimedia Commons

History of - Wikipedia

What are the little known things about some famous logos? - Quora

What are the two types of logo designs? - Quora

Deborah Meaden - Wikipedia

What are the little known things about some famous logos? - Quora

What are the two types of logo designs? - Quora

Microsoft Exchange, Logopedia

File:Office-2010-free-logo.svg - Wikimedia Commons