Publishing houses are companies that help bring books and other written works to the public. They work with authors to edit, design, and print their manuscripts. Once a book is ready, the publishing house also handles marketing and distribution, making sure that readers can find and buy the book in stores or online. These companies can vary in size, from large corporations like Penguin Random House to smaller independent presses. Each publishing house has its own style and focus, which can include genres like fiction, non-fiction, or children's literature. This diversity allows authors to find the right fit for their work.