This is the 19227th most frequent Korean word.
안에는
"Inside" or "within."
Here, '안에는' indicates the inner content or belonging within the book.
책 안에는 많은 그림들이 있습니다.
Inside the book, there are many pictures.
In this sentence, '안에는' signifies items or content present inside the bag.
가방 안에는 내 지갑이 들어 있어요.
Inside the bag, my wallet is stored.
In this instance, '안에는' refers to the interior of the room and what is contained within it.