This chapter examines how visually impaired users read and interact with text, mathematics, and charts on dynamic refreshable pin-array displays, contrasting with traditional static media like embossed paper. It details braille presentation specifics, including character dimensions and spacing standards (e.g., DIN 32976), and compares reading speeds across media: studies show pin-arrays achieve 76–90 words per min (WPM), reaching ~85% of paper braille efficiency. Tools like the TactileEPUB app enable accessible eBook reading on these displays via Bluetooth, supporting text wrapping and navigation. For text editing, cursor representation techniques (e.g., raised Dot-7/Dot-8 or vibration) and bi-manual reading strategies are discussed. The chapter highlights pin-arrays’ superiority for multi-line content, particularly in mathematics, where tools like MathCat convert MathML into braille codes (e.g., Nemeth, UEB Technical) and SVGPlott generates accessible, interactive function plots and charts (bar, line, scatter). These tools automate creation with customizable design criteria, semantic tagging, and audio-tactile feedback for exploration. While pin-arrays effectively support braille editing and complex math visualization, future work should expand chart types (pie charts) and interactions.