I am a co-organizer at the Chicago Lean Startup Circle and I also run Improffice, a startup in the Google Apps space. At the Chicago LSC we get asked for recommendations for lean startup books and resources all the time. Yesterday, we came across something that covers some of our top recommendations in one cost effective bundle:

http://www.appsumo.co...

We talked to AppSumo and got a great deal for our group. This is a great opportunity to start building or complete your library with:

- Eric Ries's new book ("The Lean Startup"), The Venture Hacks Bible, The Entrepreneur's Guide to Customer Development, Inbound Marketing by Dharmesh Shah ... and 4 more books.

In addition, the bundle includes subscriptions to:
- Twilio, 99designs, UserVoice, Grasshopper and 6 more web applications to help you build your web startup

In total you get 8 books and 9 application subscriptions that normally cost $1,324 for $42.

On top of that, you can get an additional 10% off discount by using this link:

http://www.appsumo.co...

And forwarding your purchase confirmation email to LeanRocks AT appsumo.com

Enjoy!