A magnetic connector comprising a male part and a female part, in which said male part comprises a first side and a second side extending from said first side at an oblique angle thereto, in which said male part comprises a first metal portion comprising a first metal surface on said second side, in which said second side comprises a protrusion proud of said first metal surface, in which said female part comprises a third side and a fourth side extending from said third side at an oblique angle thereto, in which said female part comprises a second metal portion comprising a second metal surface on said fourth side, in which said fourth side comprises a slot for receiving said protrusion, in which at least one of said first metal portion and said second metal portion is magnetic and attracts the other.

A modular notebook system includes a binder having multiple parallel docking channels, each with a removable spine rod and a binder-side magnetic element, and one or more notebook modules each with a housing, a spring-biased clamping mechanism that secures unpunched sheets, and a retractable kickstand. Module-side magnetic elements cooperate with binder-side elements and a rod-guided docking interface to provide tool-free, self-aligning attachment with stable retention and precise positioning. Optional cushioning liners protect module spines during insertion and removal. Modules can be removed for standalone use, re-docked for centralized storage, and configured to support landscape or portrait orientations at multiple tilt angles. The system accommodates common paper sizes and may include rear flaps for retaining mobile devices. The architecture enables rapid reconfiguration, scalable storage, and hybrid analog-digital workflows for academic, professional, creative, and field environments.