How much is a sleeve of celery? I was reading a recipe for Slow Cooker Rosemary Garlic Beef Stew and noticed that one of the ingredients called for a "sleeve" of celery. I've heard of a stalk of celery, but I've never heard of a sleeve. Here is the list of ingredients:

Ingredients 


½ lb. (4 medium) carrots $0.55 
½ sleeve celery $0.65
1 medium onion $0.36 
2 lbs. red potatoes $1.00 
2 Tbsp olive oil $0.32 
4 cloves garlic, minced $0.32 
1½ lbs. beef stew meat $9.06
Salt and pepper $0.05 
¼ cup all-purpose flour $0.04 
2 cups beef broth $0.30 
2 Tbsp Dijon mustard $0.24
1 Tbsp Worcestershire sauce $0.06 
1 Tbsp soy sauce $0.10 
½ Tbsp brown sugar $0.02
½ Tbsp dried rosemary $0.15
½ tsp thyme $0.05


How much celery do I need to add to the recipe?
This question is actually answered in a comment to the recipe you linked:


  kimberly says:
  
  Sorry for silly question, but the ingredient list says ” ½ sleeve
  celery $0.65 “. do you mean 1/2 of a stalk or 1/2 of a bunch of
  celery? [...]
  
  Beth M says:
  
  Yes, I meant a half bunch. Sorry about the confusion! :) I used about 4 stalks or so.
  They cook down quite a bit.


Also there's a picture of the ingredients used: 



So 4-5 stalks appears to be intended amount of celery. A recipe like this though is going to pretty flexible so if that seems like too much or too little it shouldn't be a problem if you go outside that range.