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 ### Collection of resources related to Typescript compiler api (and related things)
 
+TSC = Typescript compiler
+
+## AST Playground
+
+1. [ASTExplorer](https://astexplorer.net/#/gist/84d8957b9cf1e9e9f0cdda496755c52e/latest) - Shows AST returned by TSC parser. Very useful.
+
+2. [TypeScript AST Viewer](https://ts-ast-viewer.com) - SImilar to ASTExplorer, but custom made for Typescript. Very useful for checking symbols (not shown in ASTExplorer).
+
+## Reading and examples
+
+1. [Typescript Architectural Overview](https://github.com/microsoft/TypeScript/wiki/Architectural-Overview) - Explains how all the different parts of TS are connected together. Also defines the common terminologies. 
+
+2. [Typescript compiler wiki page](https://github.com/microsoft/TypeScript/wiki/Using-the-Compiler-API) - Example code to use diff parts of TS. Show boilerplate code and some example. 
+
+    *More services covered, less depth.*
+
+3. [Typescript Deep Dive by Basarat](https://basarat.gitbook.io/typescript/overview) - Good introduction to various parts of TSC api. 
+
+    *Gives the initial hints and basic concept of many apis, but often doesn't show full examples or connect the different parts it is describing. Feels like a developer's note.*
+
+4. [Typescript Transformer Handbook](https://github.com/madou/typescript-transformer-handbook) - Lots of links and examples on how to write custom transformer. More of complete working examples, less theory. Same techniques apply for using TSC api directly.
+
+## Wrappers and utils
+
+1. [ts-morph](https://github.com/dsherret/ts-morph) - Easier and nicer abstraction layer on top of TS internals. Exposes underlying constructs for advanced usecases. 
+
+    *Slower startup due to extra initial overhead.*
+
+2. [byots](https://github.com/basarat/byots) - Modified version of Typescript lib, which exposes more internal apis. Matching releases are created automatically. 
+
+    *TS has anyway opened up more apis, is it worth using anymore ??*
+
+3. [ttypescript](https://github.com/cevek/ttypescript) - TSC drop-in replacement which supports passing custom transformers as cmdline argument.