What is another word for open book?
Pronunciation: [ˈə͡ʊpən bˈʊk] (IPA) 
When we describe someone as an "open book," we often mean that they are transparent, honest, and willing to share personal information with others. However, there are many other ways to express this concept through synonyms. For example, we might say that someone is candid, forthright, or frank. Other potential synonyms could include unreserved, overt, or transparent. Essentially, any word that conveys a sense of openness, honesty, or transparency could be used to describe someone who is an "open book." Whether you are writing a formal essay or simply looking to spice up your vocabulary, exploring the many synonyms for this phrase can help you express yourself more effectively.
