The practical guide to bridging manufacturing's most expensive divide: operations vs. information technology, where metal meets code. Your company just spent $2 million on digital transformation. Six months later, IT still can't get production data, OT won't allow cloud connections, and the only thing transformed is everyone's patience. While every conference preaches convergence and every vendor promises seamless integration, Information Technology and Operational Technology remain locked in a cold war that costs industries billions. And somewhere between these two worlds, digital transformation dies a slow, expensive death. The IT/OT Handbook is a practical guide written by practitioners who've actually bridged this divide—through midnight plant crises, million-dollar-per-day downtimes, and systems built where metal meets code. In this book, you'll discover why IT/OT convergence really fails (hint: it's not the technology), seven patterns of collaboration that show where you are and how to evolve, and battle-tested frameworks drawn from Lean, Agile, DevOps, and Team Topologies—adapted for operational realities. Stop treating IT/OT integration like a technical problem. Start treating it like the organizational evolution it really is.