Earlier quoted context omitted.
Hi! I made this one, quite a long time back. Yeah, i should consider better colors and fonts, i will work upon it soon. I had nothing to do with permission, i just shared the links from the original website http://it-ebooks.info/
I suggest you take those down immediately... You're infringing on the copyright of over a thousand authors right now. Might give people the wrong impression of you...
Oh! Cool. It's down.
Thanks for the information.