How to see all Unread Messages in Gmail

Sometimes we notice that there are a lot of Unread messages in Our Gmail Inbox but they didn't appear all in one time. They come with date wise in that case it is difficult to search an unread message with an old date.

• You can put all Unread messages first then Everything else by doing this way

Just go to Gear Icon >Setting > Inbox 

Choose Unread first in Inbox Type and Save Changes.

• There is also another way  by which you can find all unread messages.

Type label:unread in Search Tab of Gmail it will give you all Unread Messages.