I welcome requests for advice from all the readers of this blog, and occasionally people take me up on the offer. I'm surprised though at how few people follow up on their queries. I don't always get back to everyone, and sometimes those emails slip to the bottom of my inbox and off my radar. When someone emails me a second time to ask if I received the first email, 99.9 percent of the time I'll reply.

I suspect most editors and hiring managers are like me, which is why, unless you've been explicitly told not to follow up, it's always a good idea to check in. Use your judgement to gauge how many times and how frequently you can contact someone, but my general rule is a week after the previous email or phone call, up to two or three times. More than that and you have to be very tactful in order not to become a pest.