Navigate the four leadership streams to excel as a manager and accelerate your career. For fans of High Output Management by Andy Grove and Leaders Eat Last by Simon Sinek, this groundbreaking guide delivers the evolutionary next step in management excellence—with practical frameworks you can implement immediately. Most management books tell you to focus downstream on your team and projects. Dalmo Cirne, seasoned leader with three decades of experience at companies like Disney and Workday, reveals that truly exceptional managers simultaneously navigate four essential streams: •    Reservoir: Maximize self-awareness, decision-making, and your own productivity capacity. •    Downstream: Build high-performing teams, deliver projects on time, and establish efficient operations. •    Upstream: Communicate effectively with executives, secure resources, and align with stakeholders. •    Sidestream: Collaborate with peers, optimize cross-functional relationships, and build social capital. Drawing on his experience transforming startups and Fortune 500 companies alike, Cirne provides actionable frameworks for leadership development across each stream, showing what to do, why it matters, when to do it, and how to execute flawlessly. Unlike theoretical leadership books full of inspirational anecdotes but little hands-on guidance, The 4 Streams of Leadership delivers battle-tested systems that work in the real world. Whether you're transitioning from individual contributor to first-time manager, feeling stuck in middle management, or aiming to upgrade your leadership toolkit, this comprehensive guide gives you everything you need to grow professionally, align with executives, facilitate collaboration, and lead your teams to success. Do not settle for managing just one stream when your success demands mastering all four. Transform yourself into an overachiever manager today.