Where to learn everything about Ethereum?

[Abiky]

Any good sites, books or any other sources of information that I could use in order to learn more about the Ethereum platform? Since I found out that the same is a very powerful one for making dapps, I have become more interested into learn more about it, especially on how to make your own applications from within the decentralized platform. Any help would be greatly appreciated. 

[TheXev]

you can join their forum and ask anything you want to know
https://forum.ethereum.org/

[Abiky]

you can join their forum and ask anything you want to know
https://forum.ethereum.org/

Thanks for your reply, but I just wanted to find a way without all the hassle of making an account. I could definitely get some answers there, but I was looking more into a guide or book on which I could take with me anywhere and educate myself about Ethereum.