Write a letter thanking for opportunity for an interview.
I would like to express my thanks for scheduling a meeting with me on (date) in order to discuss my credentials for the Editorial Assistant position with (name of publishing house).
I am confident that I could apply my knowledge of writing and journalism skills to achieve success as an Editorial Assistant. I particularly like the idea of expanding into the on-line market, as the Internet continues to increase as the means by which the world communicates.
I would again thank you for taking time out of your busy schedule to meet with me. Kindly contact me on my (telephone no.) in case you need any additional information.