Knowledge Books Light Bulb color outline icon
Light bulb with rays resting on top of two stacked books
About the Knowledge Books Light Bulb color outline icon
Two closed hardcover books lie stacked in three-quarter perspective, and a light bulb with radiating rays sits on top of the upper cover. The combination communicates knowledge, insight gained from study and the moment an idea arrives from reading. Use it on e-learning course cards, university and library pages, research and R&D sections, training presentations and blog headers about learning or self-improvement.
The isometric book stack gives the mark depth, with visible page edges and spines, while the bulb's short straight rays fan out evenly to signal illumination. Line weight stays uniform across both objects. It pairs with graduation cap, brain and open book icons in the same set. Give it breathing room above so the rays are not clipped.
This is the colour outline version of the knowledge books light bulb icon: the same line drawing in an accent colour, useful for highlighting a state, a category or a brand tone without adding visual weight.
It downloads free as an SVG vector or transparent PNG in seven sizes, and the free online editor lets you recolor it, apply gold, silver, neon and gradient styles, add animation, or convert it to EPS, PDF and DXF.
Free for personal and commercial use with attribution.
