Stickers are an upgraded 'like' button where you can choose from a selection of emoji-like pictures which also convey a specific message in the comments section.
To use a sticker, read any book on Storybird and just below the text of the book (and just above the comment section) you'll see a grey button with a heart - click on this button to see your sticker options.
Some stickers everyone has - like the 'heart'.
Some stickers only members with upgraded memberships have - like 'da bomb!'
Some new and unique stickers are be available through Crown redemption!
Some special stickers are only available through Crown redemption by upgraded members.