Hopefully I’ve tagged this with enough stuff :)
Our library has started to create programs that are geared towards patrons in their 20s and 30s, in hopes of getting that group into the library more. I’m going to be doing some craft/DIY programs, an have an after-hours tarot event, and then some…
I agree with everyone so far about the variety of platforms - post the information in as many places as possible. Everything from flyers to Instagram can work.
Having said that, your real first challenge is building awareness of the library in the 20-30 age group. Your focus needs to be marketing less on an individual program basis and more of an overall awareness of the library.
It’s much harder to gain a demographic’s attention if you’re just shooting for a single program on a single night, one time only. If they’re not already coming to the library, this type of marketing has to work too hard to be effective. You’re using a flyer to convince them that the library is a space for them too, that they should come all the way out to the library, that the program will be good (I’m sure it will but they don’t know that), that it will be worth their time, that it will be better than staying at home, etc.
It’s just too hard to do all of that in a single flyer/post.
You need to start marketing the library as a whole, focusing on your strengths and on the things that will appeal to that group. Once that awareness exists, you’ll not only expand your patron base in the 20-30 age group but it’ll be far easier to market specific programs.