Encyclopædia Britannica Eleventh Edition (also known as the 'EB11' or 'Encyc Brit 11') was a book that was first published in 1911. It has a lot of information about a lot of things! The EB11 is a big book filled with facts, pictures, and stories about history, geography, science, and other topics. It also has lots of words that are related to each topic, so that you can learn more about them. The EB11 was written by lots of different experts, so it's like having access to lots of different kinds of knowledge all in one place. It's an encyclopedia, which means that it has lots of different kinds of information about lots of different things.