An improved system for simply assembling, installing, and customizing a signpost. In one exemplary embodiment, the assembled signpost may define a semi-modular post-with-arm structure configured to receive one or more signs via one or more attachment components. The attachment component(s) may be adjustably attached/positioned at any length along the extended arm component. Moreover, the extended arm component, and any signs engaged thereto, may be supported by the post component. Moreover, the post component, the extended arm component, and any signs engaged thereto, may be rigidly yet detachably engaged to a supporting substrate via an anchoring component. The anchoring component may be specifically designed to engage discreetly with the supporting substrate under cover of the post component. Moreover, the assembled signpost may comprise a decorative add-on sub-system intended to make the over-all system more aesthetically pleasing to the intended audience.