Rico said:
When you mention the service book,what is the difference between landscape and portrait
Imagine a piece of paper that is longer on one side than the other.
When this long side is vertical, the orientation is said to be portrait. When this long side is horizontal, the orientation is said to be landscape.
Just like all those paintings in the galleries - the portraits of people tend to be long on the vertical axis, and the landscapes of the countryside tend to be long on the horizontal axis.
My service book is long on its horizontal (landscape) axis, yet the one in the advert (and others on here) are long on the vertical (potrait) axis.