A rare-book is a unique, valuable and hard-to-find book. Synonyms for this term include antiquarian book, old tome, first edition, limited edition, out-of-print book, collectible book, and vintage book. Such books are highly valued by collectors and literary enthusiasts due to their rarity, historical significance, and cultural importance. Rare-books may contain classic literature, scientific discoveries, hidden treasures, and embossed illustrations. Their scarcity often drives up prices, making them investments for serious collectors. These descriptors add a nuanced touch in describing the value and history that comes with owning such a book.