Before publishing a children's book, you first must have a concept worth publishing. It helps to read both old and new children's books to get a good idea of how a successful book reads. In addition, you can browse a variety of publishers' websites such as those for Scholastic Inc., which published the "Clifford the Big Red Dog" series, or Golden Books, publisher of the well-known book "The Poky Little Puppy." These sites often show you what's popular based on what's on the bestselling lists, according to PublishingCentral.com.
When looking for publishers who might show interest in your manuscript, start with the current edition of "Children's Writer's and Illustrator's Market," by Writers Digest. This book recommends hundreds of book publishers, magazines, agents, organizations and contests that are interested in new manuscripts. You also can work to make contacts at such events as the Society of Children's Book Writers and Illustrators conferences.
Research each publisher well, because companies have different preferences regarding the types of work they publish. If you find that a company is mostly publishing books of a certain theme and your book fits that theme or trend, mention that when you contact them. Also, note that not having illustrations to go with your manuscript is not necessarily a problem, because many companies have their own artists whom they like to use.
The book-publishing process can vary by publisher, so it's important that you research and study the process used by the publisher you're interested in. For example, some companies want your entire manuscript while others just want a query letter, which is a letter you send to pitch a book manuscript or proposal. Send only what is required so you don't waste your time as well as the publisher's.
Also, it's important that your work be legible and well organized. Type should be in a plain font, double-spaced on letter-size white paper to a specific editorial department or editor. Follow up by calling about three to four months after sending your initial inquiry.
Most new children's books are written by previously published authors, and the market is competitive, so if your first manuscript doesn't elicit a response or is rejected, don't feel discouraged. Receiving several generic form letters could indicate that the publishers you selected weren't the best match for your particular manuscript. Personal rejection letters might offer more detailed comments that can help you with your next attempt.