diff --git a/mods/ITEMS/mcl_furnaces/init.lua b/mods/ITEMS/mcl_furnaces/init.lua
index 8a221d7b..a696dbcb 100644
--- a/mods/ITEMS/mcl_furnaces/init.lua
+++ b/mods/ITEMS/mcl_furnaces/init.lua
@@ -270,6 +270,8 @@ end
 
 minetest.register_node("mcl_furnaces:furnace", {
 	description = "Furnace",
+	_doc_items_longdesc = "Furnaces cook or smelt several items, using a furnace fuel, into something else.",
+	_doc_items_usagehelp =  "Right-click the furnace to view it. Place a furnace fuel in the lower slot and the source material in the upper slot. The furnace will slowly use its fuel to smelt the item. The result will be placed into the output slot at the right side.",
 	tiles = {
 		"default_furnace_top.png", "default_furnace_bottom.png",
 		"default_furnace_side.png", "default_furnace_side.png",
diff --git a/mods/ITEMS/mcl_sponges/init.lua b/mods/ITEMS/mcl_sponges/init.lua
index 1370f048..4130a7fb 100644
--- a/mods/ITEMS/mcl_sponges/init.lua
+++ b/mods/ITEMS/mcl_sponges/init.lua
@@ -18,6 +18,7 @@ end
 
 minetest.register_node("mcl_sponges:sponge", {
 	description = "Sponge",
+	_doc_items_longdesc = "Sponges are blocks which remove water around them when they are placed or come in contact with water, turning it into a wet sponge.",
 	drawtype = "normal",
 	is_ground_content = false,
 	tiles = {"mcl_sponges_sponge.png"},
@@ -74,6 +75,7 @@ minetest.register_node("mcl_sponges:sponge", {
 
 minetest.register_node("mcl_sponges:sponge_wet", {
 	description = "Wet Sponge",
+	_doc_items_longdesc = "Wet sponges can be dried in the furnace to turn it into (dry) sponge. When there's an empty bucket in the fuel slot of a furnace, water will pour into the bucket.",
 	drawtype = "normal",
 	is_ground_content = false,
 	tiles = {"mcl_sponges_sponge_wet.png"},