Reactjs, Redux, Webpack/Browserify, Babel Resources.
Before trying to learn React or Redux, or use Webpack/Browserify or Babel, you should make sure you know Javascript at least reasonably well. A great resource learning Javascript is EloquentJS. If you have never programmed before, another great place to learn JS is Codecademy. The best resource for referencing the basic web languages (HTML, CSS, Javascript, and the DOM API) is the Mozilla Developer Network, commonly referred to as MDN.
Remember that the most basic guides makes generalizations and simplifications such that they aren't great references for "good" coding. The Guides, References, and Tips sections are your good references.
Google and the React docs should be your first place to go for React help. If you can't find your answer there, check out the #reactjs IRC channel on Freenode, or the Reactiflux Discord channel.
Redux is a flux-like application state store. Redux (and indeed, any framework or flux implementation) is not needed to build good Javascript applications. That said, if you want a set structure for how to build you app (a framework), Redux is a good choice. Another popular choice is Alt, which is supposed to have very good docs for learning Flux.
Most Redux docs and tutorials assume you know some of the most commonly used ES2015 syntax; notably arrow functions, destructuring, and import syntax. One thing that many are getting wrong is using import syntax, and having Babel compile it to CommonJS. Do not use ES2015 import syntax. It's behavior is currently undefined!. You can see where it's at here. Instead, use CommonJS directly.
Google and the Redux docs should be your first place to go for Redux help. If you can't find your answer there, check out the #reactjs IRC channel on Freenode (there isn't an active, Redux specific channel), or the Reactiflux Discord Redux channel.