The Good Thinking Society is a small charity, and we need your support to carry on the work we are doing. We aim to encourage curious minds, promote rational enquiry, challenge NHS homeopathy funding, spread critical thinking about those who claim to be psychic, investigate claims of miracle cancer cures and much, much more – but we rely on your donations to help us pursue our mission.

All our donations are handled by JustGiving, and you can set up a monthly donation or make a one-off contribution in just a few clicks. Each donation helps keep our work going.

Set up a direct debit with JustGiving

Donations of £50 or over will earn a signed copy of any one of Simon Singh’s books – to claim your copy, simply make your donation of £50 or over and then let us know which book you’d like:

  • Big Bang
  • Fermat’s Last Theorem
  • The Simpsons and Their Mathematical Secrets
  • Trick of Treatment


If you shop on Amazon, you can select our charity as your AmazonSmile recipient, and Amazon will make a donation to Good Thinking for every purchase you make.

Set up Amazon Smile now >> 

The Giving Machine

If you shop online at one of 2000+ shops, you can select Good Thinking as your chosen recipient via the Giving Machine and we will automatically receive a small commission from your purchase, free of charge to you. There is even a browser plugin to remind you when you visit a shop that’s eligible for giving.

Set up the Giving Machine now >> 

Gift Aid

"Money" image from Bohed, you enable Gift Aid on your donation then we will receive around 25p extra for every pound you donate. In order to Gift Aid your donation, you must:

  • be resident in the UK (or Crown Servants or members of the Armed Forces serving overseas);
  • have paid enough UK income tax and/or capital gains tax to cover the amount of tax we and other charities you have donated to this financial year will reclaim (please note that other taxes such as Council Tax and VAT do not qualify); and
  • provide us with a gift aid declaration. By ticking the box below and supplying your address details through PayPal you are providing us with that declaration.

More information on Gift Aid can be found here…

Fundraising Lectures for Good Thinking

The Good Thinking Society is a small charity, aimed at encouraging rational thought and skeptical enquiry. In order support our activities science writer Simon Singh will be undertaking a series of fundraising lectures. If you are interested in booking Simon for one of these lectures, please get in touch. Simon Singh, who founded Good Thinking, …