Devaka Cooray

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since Jun 24, 2014
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Devaka started programming with Pascal and BASIC languages when he was 13, and he has been coding with Java since 2003. Devaka got his bachelor's in computer science from the University of Moratuwa, and currently holds SCJP, SCWCD, and SCBCD certifications. He is mostly known as the author of ExamLab , which is a popular exam simulator for SCJP certification.
When he is not wrangling with his JavaEE and enterprise projects, he likes to play with sneaky web application security stuff.
More about Devaka can be found at his website
Moratuwa, Sri Lanka (zone 12)
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Recent posts by Devaka Cooray


The forum software indicates that it did send several emails to that address. It seems that none of these emails have been bounced yet.

To make sure you can receive emails at that address, I just sent you an email from my account. Did you receive it?
cover for Building a better World in Your Backyard instead of being angry at the bad guys

Dozen Books Shortcuts!

Most of the people coming to this page already have the book and they are looking to get a dozen physical copies to hand out.  So we made this spiffy shortcut!

Here's a growing list of ideas for who and where to give the book. And here's a slightly different angle focusing on  how a shy person might give away 12 copies of the book

little free library

The most popular way to share these books is to utilize the Little Free Libraries. Within your zip code, there are probably more than a dozen Little Free Libraries.  To find yours go to the Little Free Library map and plug in your zip code. Take a trip around your neighborhood, enjoying the sights and visiting all the Little Free Libraries, transforming minds in your neighborhood!


From the Introduction:
"For nearly every global problem, there are solutions we can implement in our backyard that also save us money and help us live more luxuriant lives. A few of us do these things and bask in the glow of the opulence and extra cash. Others observe and think "I want extra luxury and money too! Not fair!” and then they emulate. And on and on it goes. Then the global problems sorta just dry up and blow away. That’s what this book is all about.

I think the reason we see so many people angry is because they authentically care. But they seem to get stuck at being angry. Some people spend a hundred hours a week for 20 years being angry and not much changes. But I think that if you spend a tiny fraction of that time doing the things mentioned in this book, your global positive impact will be a thousand times greater."

Where to Buy

   the eBook:
       1 ebook 1 eBook ($6.99) button to buy 1 ebook  
       12 ebook gift codes ($30.00)  button to buy 12 ebook giftcodes
       100 ebook gift codes ($150.00) button to buy 100 ebook gift codes

   the physical book

       With US Shipping:    
            1 book($19.50) button to buy 1 physical book US shipping
            12 books ($60)  button to buy 12 physical books US shipping
            64 books ($280) button to buy 64 physical books with US shipping

       With non-US Shipping:
            1 book ($38.00) button to buy 1 physical book non-US shipping (International Shipping)
            12 books ($175)  button to buy 12 physical books non-US shipping (International Shipping)
            64 books ($535)  button to buy 64 physical books with non-US shipping (International Shipping)

   the audiobook
            1 audiobook($12.50)  button to buy 1 audiobook
            12 audiobooks ($50) button to buy 12 audiobooks
            100 audiobooks ($250) button to buy 100 audiobooks

Table of Contents

table of contents introduction
chapters 1-6 environment vs environmentalist, light bulbs, carbon and petroleum and toxic footprints,
Chapters 7-12, Wheaton Eco Scale, recycling, vote with wallet, organic, vegan, financial strategies
chapters 13-15 home energy conversation, reducing toxins, living in community
Chapters 16-24 gardening, native plants, uses for sticks, composting, solar dehydrator, greywater, lawns vs mowable meadow
chapters 25-31 vegan livestock, replacing petroleum with people, pee in garden, humanure, colony collapse, food forest, natural building, natural swimming pools
table of contents conclusion

About the Authors

Paul Wheaton:
Paul Wheaton is a giant doofus who is bonkers about permaculture. He won’t shut up about permaculture. On and on, every day . . . it’s annoying. He has gone so far as to make a 3-DVD set that is just about the earthworks for permaculture gardening. And not only did he make a 4-DVD set about rocket mass heaters, but he made ANOTHER 4-DVD set about rocket mass heaters. Why on earth do people need 8 DVDs about something so simple? If you think that is ridiculous, take a look at his 177 hours of video of a full Permaculture Design Course, and Appropriate Technology course. Then there’s the cards. Okay, the permaculture playing cards are pretty cool...

Shawn Klassen-Koop
Shawn Klassen-Koop’s passion for building a better world grew from many years of working at a summer camp. This time inspired awe and wonder for the natural world through many hours camping in the woods, paddling on a lake, or sleeping under the stars. Seeking to solve world problems with clever thinking, Shawn decided to pursue computer engineering as a career, where he learned the importance of good design and strong critical thinking. In time he felt like modern technology was causing more problems than it was solving and started looking for a better way. "

Illustrator: Tracy Wandling

More Information

Related Videos

More videos found here, with readings and discussions of various chapters

Related Podcasts
podcast 416 - better world book - recycling
podcast 417 - better world book - honey bees - part 1
podcast 418 – Better World Book - Honey Bee Care - part 2
podcast 422 - Better World Book - Replace Petroleum
podcast 423 - Better World Book - Finance - Part1
podcast 424 - Better World Book - Finance - Part2
podcast 425 - Better World Book - Finance - Part3
podcast 434 - Better World Book - Vegan
podcast 435 - Better World Book - Wofati - Part 1

Related Threads
Sneak Peak at Paul and Shawn's Upcoming Book
Building a Better World in Your Backyard Press Kit
The Better World Book Kickstarter
Review of The Better World Book by Rosemary Hansen

Related Websites
Building a Better World Book
1 month ago
The forum software keeps a temporary "cache" of certain things from time to time. When this happens, the cached stuff can take a few hours to update. I guess that's what happened here.
Hmm, I can see what's going on.

I think we will be able to fix this by tomorrow.

Which bumper sticker(s) did you try to add?

paul wheaton wrote:... and it does sound perfectly reasonble for dad to be there for that instead of ...

Pierre Michael wrote:and I got an email from Permies to complete my purchase which I did

What exactly did that email say? Can you please show us that text?
4 months ago
BB verification is available to all.

To be able to verify someone's BB submission, you have to have completed that particular BB yourself, AND you must have obtained any non-air badge of that same aspect.

For example, you can verify someone's BB submission on wash dishes by hand only if you have completed that BB yourself AND you have obtained any "nest" badge except the air badge.
I'm glad I could help :)