Writing
So You Think You Know C#? Static Classes
Choose static classes when instances serve no purpose. Shared type state, autonomous methods and immutable inputs explain the discipline that makes them useful.
Topic
Object Layout
How a runtime represents objects through field storage, headers and references to shared type information. Layout and allocation overhead depend on the runtime and target architecture.
2 pages
Writing
.NET Memory Allocations and Performance
.NET allocation costs follow what gets stored and copied. Structs, classes, arrays and strings explain object layout, references and garbage collection.