The Mastery of Languages: Or The Art of Speaking Foreign Tongues, Idiomatically is a book written by Thomas Prendergast in 1869. As the title suggests, the book aims to provide readers with the knowledge and skills required to master foreign languages and speak them idiomatically. Prendergast begins the book by discussing the importance of language mastery and the benefits that come with being able to speak multiple languages. He then goes on to outline...