Structured LEGO reference that connects to BrickFinder’s set inventory, part catalog, and identification tools — not a news blog.
Seven practical methods — photo ID, mold numbers, shape filters, underside tubes, and more.
Brick, plate, tile, slope, Technic, and minifigure families with Design ID examples.
Design IDs vs Element IDs, where numbers are stamped, and how to look them up.
Moving arms, light-up mouth, which parts to photograph first, and a rebuild-without-booklet workflow.
Open Set Finder or a set information page (for example LEGO 40900 Scary Haunted Tree).