Membership matters
Membership is how a professional body stays useful: the record of who belongs, the standard they are held to, and the reason the institute can speak for the people who do the work.
A membership body earns its place when the people who practise a profession can see themselves in it. The register, the standard and the public voice all come from that.
Members get a record that travels with them, a standard they can point to, and a say in how the profession is spoken for. The institute exists to keep those three things honest.
That is the work behind the join button: not a newsletter, and not a logo. A body of people, held to something they recognise.
The people who belong
Membership is a community of practice. The photograph is the room the work happens in: people who do the job, in the same conversation.