This interview process involved MANY steps over a period of several weeks. They acknowledged that it was a detailed search process and expressed appreciation for my efforts several times. But it was A LOT of work as an applicant.
After I submitted my application materials and before any interview, I was asked to additionally submit some work samples with a short explanation of my involvement in the production process. Then I had a screening interview on the phone. Then I was scheduled for an in-person interview, but in advance of that, I had to complete an exercise. This involved some writing and some graphic design.
Then I had my in-person interview, and it was long and extensive - an interview with a handful of staff members (all at the same time) followed by an editing exercise and critiquing one of their newsletters.
After all of this, fortunately, I was asked for references, but I'm not sure if they contacted them or not. In the end, I was not offered the position - even after all of that work I put forth.
They really ask a lot of applicants, and if you don't have the time (if you are currently working while looking for a new position), I'd question whether you should put forth that much effort.