I just received $5,947 in advance sales for my first technical book, even though it’s only 25% complete, and I’m self-publishing it. The book is called Refactoring English, and it’s a guide for software developers to improve their writing.

In March, I ran a three-week pre-sale for the book on Kickstarter. The pre-sale raised $6,551 from 191 customers. After Kickstarter’s fees, I get $5,946.92, or 91% of the total.