Give me my 5 minutes back
There is literally only two things in this book that even a complete novice to Minecraft couldn't figure out in 10 minutes of actually looking at the game. Let me save you the read. The first thing is that you can build an underwater dome by creating a solid dome of wood (or anything), building a glass dome over it, digging under the dome, and destroying the materials used for the solid dome. (Theoretically. I haven't tried it.) Of course, if Minecraft adhered to the laws of physics as the author claims, this wouldn't work because it would flood through the gap needed to get inside. The second nugget of knowledge is that, apparently, some people (the author) think it's necessary to draw actual blueprints of a project to aid in efficient building even in a mode that literally supplies the player with unlimited materials. I get it if you're building something with complex red stone circuitry. But so you don't forget a room? Come on. Really, people, just go watch one of the more notable Minecraft YouTubers if you want to learn a little bit about the game, get some actual ideas, and learn how to do stuff. Trust me. It may take 15-20 minutes instead of 5, but you'll enjoy it more.