A publication house, on the other hand, is a specific type of media house that focuses on the publication of written materials, such as books, magazines, and newspapers. Publication houses are typically involved in the editing, design, printing, and distribution of these materials. They may also be involved in the acquisition of rights to publish works by authors.
In summary, the key difference between a media house and a publication house is the scope of their activities. Media houses encompass a wide range of activities related to the production and distribution of media content, while publication houses specifically focus on the publication of written materials.