Designed as a user manual, this treatise provides all the keys to understanding the challenges and how the various skills can be combined, giving a voice to the project owner, the project manager, and the contractors alike" - Building Technical Notebooks/Le Moniteur. A collaborative design and construction method applied to buildings, BIM has now become essential to the industry. It is known to rely on the use of dedicated software tools that enable interoperability between the different stakeholders in a construction project. Numerous gains are expected in terms of time, costs, reduced defects, and efficient building operation once completed. Whatever its translation, the term goes far beyond the graphic representation of the building to designate its database: Building Information Modeling, Modeling, or Management; it can also be read as Building and Modeled Information. The various aspects of this ongoing revolution in the building sector are developed one by one in this second edition, updated and expanded. new chapters. The two editors of the book – whose perspectives and experience are complementary – are both experts in digital modeling since its inception. Two hundred specialized contributors each addressed a specific theme: teachers and researchers; architects, engineers, surveyors, economists and project owners (often representatives of their respective professional organizations); software publishers; representatives of construction companies (small and large) or even representatives of new professions (BIM managers, consultants).