I have written one book which I made free to download via leanpub , There have been 500 downloads , 5 of them were paid . The price I set was just $ 5 . On gitbooks , where one can download for free , there have been around 2 k downloads in the last year . I have got feedback from many readers that they loved the book and the teaching style , yet only 56 have paid until now , even with the price tag of $ 5 . I wanted to open source the book and intentionally kept the pay as you go model because I wanted to contribute to the FOSS community . I understand the author ' s feelings behind charging 29 $. devgolangantitextbooklink <| sep |> Hitler may have been an autist <| sep |> When you ' re so focused on being insulted that you don ' t even understand dad jokes . Edit Talking about the original video , not this commenter .