Children's Books or children's literature is very hard to define and categorised, there is no set genre for children to enjoy. Sometimes, a children's book became more popular and enjoyable by the teenagers and adults and vice versa. The demand for Children's Books has been there from the time memorable and will remain forever.

Children's literature or Children's Books can be categories into six major class, namely early childhood picture books, traditional literature, fiction, non-fiction, biography and autobiography and poetry and verses. Children's literature constitutes those books that are actually selected and read by children.

Children's of all country can relate to each other very easily and their interest are also same many times. Children's have unique taste and interest, although Harry Potter may be an all-time favourite for children's all over the globe. But, they prefer funny books over fairy tales when it comes to bedtime stories. The three top favourite books in bedtime stories are The Gruffalo by Julia Donaldson and Axel Scheffer, the Very Hungry Caterpillar by Eric Carle and the BFG by Roald Dahl.

There are many writers and authors who popularised the Children's literature or Children's Books through their brilliant work. John Amos Comenius, the author of Orbis Pictus, the book considered to be the first picture book specifically for children. Charles Perrault is believed to be the one who laid the foundations of the fairy tale, Perrault stories include Little Red Riding Hood, Cinderella, Sleeping Beauty and Puss in Boots. Hans Christian Anderson is best known for his fairy tales, such as The Snow Queen, The Little Mermaid, The Emperor's New Clothes and The Ugly Duckling. Roald Dahl have written some very popular children's books, such as The BFG, Charlie and the Chocolate Factory and Matilda.

When we talk about Children's Books, its very hard to skip the name of J.K. Rowling, the creator of Harry Porter series. She is one of the best-known children's author today and also the most successful. The book on Harry Porter series have been sold in more than 300 million copies worldwide and are translated into more than 63 languages.

Many Children's Books have been made into feature films and are equally successful in this medium. Like the Alice in Wonderland, the BFG series and the Harry Porter series. These all series collected a huge amount when released worldwide in cinema halls and multiplexes. All these movies based on popular Children's Books are not only popular among children's but it has adult audience also. With the collection of these movies, more and more popular Children's Books got inspired and are being made into movies.

Not only fairy tales or funny books are popular among children's, but children's are always into look-out for some unique and informative content. It no longer only the fairy tales or funny books, which fascinates children's image. Even parents are pushing their children's to read book those have unique and informative content. Now a days parents are always in search and buying those unique and informative content books, which will help their children's to develop intellect understanding and gain wisdom.

Children's books are in demand all over the world and more and more writers and authors are coming up with some new books. The potential in the market is immense and Children's are more into reading in these era than previously and they are enjoying it the fullest. Today's children are more focused, determined and eager to read and learn about anything and everything.