Most people try to change outcomes by pushing harder on events: more effort, more money, a new leader, a quick fix. Systematic thinkers look one level down and ask what structure is generating the pattern, then change the structure. This collection treats systematic thinking as a thinking paradigm with two halves: systemic seeing (wholes instead of parts, loops instead of lines, structures instead of events) and systematic method (a disciplined, repeatable process for drawing boundaries, mapping stocks and flows, finding feedback loops, and choosing where to intervene). Across seven modules and 39 sessions it moves from what systematic thinking is, through the kinds of systems that exist and the building blocks every system shares, to practical tools for seeing systems, the recurring traps systems fall into, how systems fail and recover, and how to change them. No mathematics or engineering background is assumed; every concept is introduced through a concrete case before it is generalized.