If there is one artist, more than another, whose work it is desirable that you should examine in Florence, supposing that you care for old art at all, it is Giotto. You can, indeed, also see work of his at Assisi; but it is not likely you will stop there, to any purpose. At Padua there is much; but only of one period. At Florence, which is his birthplace, you can see pictures by him of every date, and every kind. But you had surely better see, first, what is of his best time and of the best kind.