diff --git a/README.md b/README.md
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+++ b/README.md
@@ -10,12 +10,12 @@ For more information about Arc contracts and the entire DAOstack ecosystem, plea
 ### Documentation
 Check out the [complete documentation on Arc.js](https://daostack.github.io/arc.js).
 
-Build and preview the documentation in a local repo using the script command `npm start docs.build.andPreview`.
-
 ## Contribute to Arc.js
 
 PRs are welcome but please first consult with the [Contribution guide](https://github.com/daostack/arc/blob/master/CONTRIBUTING.md).
 
+Refer to the [Arc.js Developer Documentation](docs/DeveloperDocs.md).
+
 Join us on [Slack](https://daostack.slack.com/)!
 
 Join us on [Telegram](https://t.me/daostackcommunity)!
diff --git a/docs/DeveloperDocs.md b/docs/DeveloperDocs.md
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@@ -0,0 +1,145 @@
+# Arc.js Architecture Review
+
+The following is a brief sketch of the primary structures of the code in Arc.js.
+
+Git repository is [here](https://github.com/daostack/arc.js).
+
+User documentation is [here](https://daostack.github.io/arc.js).
+
+Both code and automated tests are written in TypeScript.
+
+Code standards are enforced by TsLint rules defined in [tslint.json](https://github.com/daostack/arc.js/blob/master/tslint.json).
+
+User documentation is generated using [TypeDoc](http://typedoc.org/) and [MkDocs](https://www.mkdocs.org/).  Typedocs is configured and executed using [typedoc.js](https://github.com/daostack/arc.js/blob/master/package-scripts/typedoc.js).  MkDocs is configured in [mkdocs.yml](https://github.com/daostack/arc.js/blob/master/mkdocs.yml).
+
+While some scripts are available in package.json, all are defined in [package-scripts.js](https://github.com/daostack/arc.js/blob/master/package-scripts.js).  Package-script.js leverages [nps](https://github.com/kentcdodds/nps) and defers to several custom javascript node scripts contained [here](https://github.com/daostack/arc.js/tree/master/package-scripts).
+
+Code is located in the [lib folder](https://github.com/daostack/arc.js/tree/master/lib), tests under [test](https://github.com/daostack/arc.js/tree/master/test).
+
+Most of the code modules define either an Arc contract wrapper class or a service class.
+
+Arc contract wrapper classes are all located under [lib/wrappers](https://github.com/daostack/arc.js/tree/master/lib/wrappers).
+
+Service classes are all located in lib (though there is a [ticket to move them](https://github.com/daostack/arc.js/issues/208))
+
+More on wrappers and services follows.
+## Arc Contract Wrappers
+Every Arc contract wrapper class has as its root base the [ContractWrapperBase class](https://github.com/daostack/arc.js/blob/master/lib/contractWrapperBase.ts).
+
+Each wrapper can be instantiated and hydrated using the [ContractWrapperFactory class](https://github.com/daostack/arc.js/blob/master/lib/contractWrapperFactory.ts).  The word “hydrated” means to initialize a wrapper instance with information from the chain using `.new`, `.at` or `.deployed`.
+
+Not all wrapper classes inherit directly from `ContractWrapperBase`. The two voting machine classes inherit from [IntVoteInterfaceWrapper](https://github.com/daostack/arc.js/blob/master/lib/wrappers/intVoteInterface.ts) which in turn inherits from `ContractWrapperBase`.
+
+## Other classes
+
+**[utils.ts](https://github.com/daostack/arc.js/blob/master/lib/utils.ts)** - provides miscellaneous functionality, including initializing `web3`, creating a truffle contract from a truffle contract artifact (json) file, and others.
+
+**[utilsInternal.ts](https://github.com/daostack/arc.js/blob/master/lib/utilsInternal.ts)** -- internal helper functions not exported to the client.
+
+**[Dao.ts](https://github.com/daostack/arc.js/blob/master/lib/dao.ts)** -- not a wrapper, nor defined as a service, more like an entity, it provides helper functions for DAOs, particularly `DAO.new` and `DAO.at`.
+
+## Arc.js initialization
+
+Arc.js typings are available to application via [index.ts](https://github.com/daostack/arc.js/blob/master/lib/index.ts).
+
+At runtime, applications must initialize Arc.js by calling `InitializeArcJs` which is defined in [index.ts](https://github.com/daostack/arc.js/blob/master/lib/index.ts).  This might be viewed as the entry-point to Arc.js.
+
+## Migrations
+A folder called "migrations" provides a structure that is expected by `truffle contract` when running migrations.  It contains a single stage that does little but invoke other  [code generated from typescript](https://github.com/daostack/arc.js/blob/master/lib/migrations/2_deploy_schemes.ts) at build time.
+
+## Scripts
+
+
+### Build
+
+Build the distributable code like this:
+
+```script
+npm start build
+```
+
+Build the test code like this:
+
+```script
+npm start test.build
+```
+
+### Lint
+
+Run lint on both library and test code like this:
+
+```script
+npm start lint
+```
+
+!!! info
+    The above script runs `npm start lint.code` and `npm start lint.test`
+
+To lint and fix:
+
+```script
+npm start lint.andFix
+```
+
+!!! info
+    You can also fix code and test separately: `npm start lint.code.andFix` and `npm start lint.test.andFix`
+
+
+### Tests
+
+To run the Arc.js tests, run the following script in the Arc.js root folder, assuming you have already run `npm install`, and are running a ganache with migrated Arc contracts (see "Getting Started" in the [Arc.js Documentation](https://daostack.github.io/arc.js)):
+
+```script
+npm start test
+```
+
+This script builds all of the code and runs all of the tests.
+
+!!! info
+    Both application and test code are written in TypeScript.
+
+#### Stop tests on the first failure
+
+```script
+npm start test.bail
+```
+
+#### Run tests defined in a single test module
+
+Sometimes you want to run just a single test module:
+
+```script
+npm start "test.run test-build/test/[filename]"
+```
+
+To bail:
+
+```script
+npm start "test.run --bail test-build/test/[filename]"
+```
+
+Unlike `test`, the script `test.run` does not build the code first, it assumes the code has already been built, which you can do like this:
+
+```script
+npm start test.build
+```
+
+### Build Documentation
+
+Build the documentation like this:
+
+```script
+npm start docs.build
+```
+
+Preview the documentation:
+
+```script
+npm start docs.build.andPreview
+```
+
+Publish the documentation:
+
+```script
+npm start docs.build.andPublish
+```