Comics are, perhaps, the most ancient art in the world. People needed to exchange information and they invented the method of telling a story through a serial row of pictures. Later they begin to add words to these pictures and thus comic art has appeared. Writing comics is not the same as writing a book. You should always remember that comic book is the result of co-working of the writer and the artist, and it will be the artist who will transfer your ideas to the readers, so your task is to provide him with precise instructions.