Book excerpt: In the sixties, architecture fell in love with concrete. Architecture has since shifted its fondness to glass and steel, and concrete buildings have fallen out of favor and into disrepair. But they represent an exciting era of faith in architecture and technical innovation that has yet to be documented.Concrete Torontoacts as a guidebook to the city's extensive concrete heritage. Architects, journalists, professors, concrete experts, and even the original architects use a wealth of new and archival photos, drawings, interviews, articles, and case studies to celebrate Toronto's concrete past.