What is the best book you have ever read? and what is the reason or key points to support your statement ????

I had came across a book last night and enjoyed reading that book,so wanted to ask the community to see,which books others in the world love.

Btw the book i really liked was “The Diary of a Young Girl“.

so you can reply me your favourite book till date and you can say why is the book the best book among all other books you have read.