Expanded Survival Guide/Handbook

[One Whole Dragon]

The idea here is basically something similar to the handbook from a different game you won't find here on steam, called Vintage Story. It basically serves as a way of telling the player "here's where/how you can get this material, here's what you can do with it, here's what you need to make this thing".
I think this would really help ease players into the new features and systems added in Build 42 in particular, as there's a number of basic materials that it's not exactly obvious how to get them - such as large stones, clay, or burlap. It would also allow players to take something that they have and find out precisely what's possible to do with it, rather than fumbling around in different menus and crafting stations trying to figure that out.

[Moray Soirée]

Yeah, navigating the crafting menu is cumbersome, and basic materials don't have any info because it's recipe based. The game is complicated enough to deserve a built in wiki where items and structures are entries with recipes acting as links between them.

Minecraft's Too Many Items mod (and its many derivatives) are another good example, being directly integrated into the crafting and inventory systems.

Oxygen Not Included has an in game database like that as well.

[Loonessia]

+1 agree, Craft Helper in b41 was huge for this and it'll either most likely make a comeback to this version if nothing changes. With most of the crafting recipes removed from the right click menu, it'd be a bit sane to have an option to figure out what you can do with what. Bonus points if, from what I heard that certain recipes are unlockable through skill progression, that you should know what is unlockable using skill progression with something like a question mark. Figuring all this out from my perspective without any wiki or guide available is a little cumbersome.