An open, hardcover book, depicted with a blue cover on most platforms. Some platforms include a bookmark. Commonly used for various content concerning reading, writing, learning, and schooling.

Apple’s design displays text from its 1997–2002 Think Different ad campaign:

Here’s to the crazy ones. The misfits. The rebels. The troublemakers. The round pegs in the square holes.The ones who see things differently. They’re not fond of rules. And they have no respect for the status quo. You can quote them, disagree with them, glorify or vilify them. About the only thing you can’t do is…

Google’s design features a brown cover with a red bookmark, similar to its design for 📕 Closed Book.

Open Book was approved as part of Unicode 6.0 in 2010 and added to Emoji 1.0 in 2015.