I have just come across an interesting article on the Writers Write blog which highlights 50 Iconic Writers who were repeatedly rejected by Publishers.
It can be so discouraging to submit your manuscript to a publisher then hear nothing from them for months before finally receiving a rejection letter. But, as the article explains, even some Writers who are now famous had a real battle trying to find a Publisher to take on their work.
Rejection can be painful; particularly if no reason is given. Your mind fills with self-doubt and you may feel like ripping the whole thing up… but you must try to maintain belief in yourself and your work. Occasionally, if a Publisher likes your manuscript but feels just a few things need changing (such as a minor improvement to the storyline), they may return your manuscript to you with helpful advice and ask you to resubmit when the changes have been made. Although this may seem like harsh criticism the fact that they have taken the trouble to offer advice means that they can see potential and may be willing to publish if you are willing to make the changes suggested.
If your manuscript is rejected outright by a Publisher then take courage from the list of Writers in the Writers Write blog article. Try to maintain belief in yourself and your work and steadfastly continue to approach other Publishers until your work is accepted.