Jacobs also believed each community should possess its own identity. Emily Talen, in her book Neighborhood, which frequently cites Jacobs, says this shared sensibility can be the product of exclusion, typically around ethnic, racial, or class distinctions. These days, though, developers tend to use branding to encourage social cohesion: They name an area (Wicker Park in Chicago, for example, or Capitol Hill in Seattle), establish clear boundaries, and erect corresponding signage. But as Jacobs warned, what worked in one place wouldn't necessarily work in another. To successfully forge a shared identity—as the hip nightlife area, say, or the art district—each neighborhood must start doing so from its beginning.