This book investigates a paradox of creative yet scripted play—how LEGO invites players to build ‘freely’ with and within its highly structured, ideologically-laden toy system. First, this book considers theories and methods for deconstructing LEGO as a medium of bricolage, the creative reassembly of already-significant elements. Then, it pieces together readings of numerous LEGO sets, advertisements, videogames, films, and other media that show how LEGO constructs five ideologies of play: construction play, dramatic play, digital play, transmedia play, and attachment play. From suburban traffic patterns to architectural croissants, from feminized mini-doll bodies to toys-to-life stories, from virtual construction to playful fan creations, this book explores how the LEGO medium conveys ideological messages—not by transmitting clear statements but by providing implicit instructions for how to reassemble meanings it had all along.