The Open Book emoji is the picture of a hardback book with red, blue or brown, depending on the emoji provider. Its meanings are quite straightforward: it may be used in everything relating to education, reading literature pieces of any genres, researching, and writing books of any styles.
The open book emoji was introduced in 2010 and released as part of the Unicode 11.0 standard. This emoji can be found under the objects
category. Because the open book emoji has been around for quite some time, it should display correctly in the majority of operating systems.