diff --git a/nop-data.lua b/nop-data.lua
index e7fae1b..abbb570 100644
--- a/nop-data.lua
+++ b/nop-data.lua
@@ -42,6 +42,21 @@ local VALDRAKKEN = P.VALDRAKKEN; assert(VALDRAKKEN ~= nil,'VALDRAKKEN')
 --local LOAMM = P.LOAMM; assert(LOAMM ~= nil,'LOAMM')
 local ISKAARA = P.ISKAARA; assert(ISKAARA ~= nil,'ISKAARA')
 --
+NOP.T_ITEM_REQUIRE_QUEST_NOT_COMPLETED = { -- [itemID] = questID, entries where questID needs to be not completed
+  [222548] = 83730, -- Algari Treatise on Inscription
+  [222554] = 83726, -- Algari Treatise on Blacksmithing
+  [222552] = 83729, -- Algari Treatise on Herbalism
+  [222546] = 83725, -- Algari Treatise on Alchemy
+  [222553] = 83733, -- Algari Treatise on Mining
+  [222547] = 83735, -- Algari Treatise on Tailoring
+  [222621] = 83728, -- Algari Treatise on Engineering
+  [222550] = 83727, -- Algari Treatise on Enchanting
+  [222649] = 83734, -- Algari Treatise on Skinning
+  [222551] = 83731, -- Algari Treatise on Jewelcrafting
+  [222549] = 83732, -- Algari Treatise on Leatherworking
+  
+   -- [itemID] = questID, --
+}
 NOP.T_INSTA_WQ = { -- [spellID] = itemID, list of OH advancements and spells for instant completion non-elite WQ
   [221602] = 140038, -- Might of Dalaran
   [221587] = 140155, -- Vanguard of the Silver Hand
diff --git a/nop-item.lua b/nop-item.lua
index 95f72b5..e8c5273 100644
--- a/nop-item.lua
+++ b/nop-item.lua
@@ -37,6 +37,7 @@ local T_CHECK = P.T_CHECK; assert(T_CHECK ~= nil,'T_CHECK')
 local T_OPEN = P.T_OPEN; assert(T_OPEN ~= nil,'T_OPEN')
 local T_RECIPES_FIND = P.T_RECIPES_FIND; assert(T_RECIPES_FIND ~= nil,'T_RECIPES_FIND')
 local T_SPELL_FIND = P.T_SPELL_FIND; assert(T_SPELL_FIND ~= nil,'T_SPELL_FIND')
+local T_ITEM_REQUIRE_QUEST_NOT_COMPLETED = NOP.T_ITEM_REQUIRE_QUEST_NOT_COMPLETED; assert(T_ITEM_REQUIRE_QUEST_NOT_COMPLETED ~= nil,'T_ITEM_REQUIRE_QUEST_NOT_COMPLETED')
 local T_USE = P.T_USE; assert(T_USE ~= nil,'T_USE')
 local print = P.print; assert(print ~= nil,'print')
 local TIMER_IDLE = P.TIMER_IDLE; assert(TIMER_IDLE ~= nil,'TIMER_IDLE')
@@ -171,6 +172,11 @@ end
 local offset = 0
 function NOP:ItemToUse(itemID,count,prio,zone,map,aura,source) -- store item into table
   self:Verbose("ItemToUse:","itemID",itemID,"count",count,"prio",prio,"zone",zone,"map",map,"aura",aura,"source",source)
+  --check required quest
+  local quest = T_ITEM_REQUIRE_QUEST_NOT_COMPLETED[itemID]
+  if quest and C_QuestLog.IsQuestFlaggedCompleted(quest) then
+    return --don't show this item anymore
+  end
   local pt = T_USE[itemID]
   if not pt then -- new item
     if (self.BF and self.BF.showID == nil) and (itemID == self.AceDB.char.itemID) then -- first time looking for item then get last item from last session