This document introduces seven management and planning tools: affinity diagram, interrelationship diagram, tree diagram, matrix diagrams, matrix analysis, PDPC (process decision program charts), and activity network diagram. It provides a brief description of each tool, explaining how they can help structure brainstorming, simplify processes, remove uncertainty, and improve penetration. It also gives an example case study of how a software company called Zenly used these seven tools to address bugs in their app, adopt new features faster, improve project completion times, and better manage working across multiple projects and initiatives simultaneously after hiring a project manager.