Incognito – Secret Mode
Incognito mode is for private browsing, where Chrome doesn’t record your browsing history, download hisotry. Any cookies that are stored during the incognito mode is deleted when you close the browser.
You can launch incognito by pressing Ctrl + Shift + N, (or) Settings -> New incognito Window, (or) right mouse-click on a link from a regular Chrome session, and select “open link in incognito window”.
One of the practical use for this mode (apart from private browsing) is to login to the same site using two accounts.
For example, if you have two gmail accounts, login using the first account in your regular Chrome browser, and login using the second account in your Incognito mode on your Chrome browser. This way, you can be logged in to two gmail accounts at the same time on Chrome browser.