Is this a good deal for someone who wants to learn more about using linux? (humblebundle deal”

Was scrolling for a Sonic 4 deal & I saw this. It got me wondering, I've been wanting to learn more on about kde /linux in general, so came to ask if this is a good deal or not. I learn better using books rather than vids so. it seems like a great idea

General Consensus: Skip themdue to it being outdated and better to google it