Personas are fictional profiles that represent different groups within your target audience
They help your marketing to be non-generic and to connect with your audience on a personal level
To create personas, interview your audience, group similar types together, create group profiles and build journey and empathy maps
Define Your audience broadly the begin coming with a list of questions you can ask during interviews, surveys or focus groups
A scientist who writes about her daily experiences. Most are drafts but some are publicly shared, like this one you just read.