How do I handle a long gap on my résumé? - 13 months and counting

I have been out of work for 13 months and worry about the gap. I am in Denver, in case local advice matters. I have done some volunteering and a course during that time. What do you say in interviews?

Thanks for writing this out. I went through something close to it last year, and it settled down once I kept a simple log of every call and form.

Keep your skills fresh and mention anything recent. It shows momentum.