Why do some artworks stand out head and shoulders above others? What makes a painting truly great, and secures its artistic legacy for centuries after its creation? Some owe their greatness to composition of colour, others offer profound insights into their human subjects, and some convey their message particularly effectively. Exceptional art somehow satisfies at a deeper level than the rest, and this truly insightful and deeply researched work examines exactly how 80 of the most significant works of art have persevered, and what makes us come back to them time and time again. Andy Prankhurst's succinct, appraisive text will open your eyes to the unique defining qualities of these key works, enabling you to appreciate the groundbreaking talents of every age. An indispensable book for anyone who wants to understand how and why art continues to fascinate us, this book is a comprehensive guide to these masterpieces and what exactly makes them great.