My 5 favourite pre-loved book nooks in Klang Valley

I've decided to compile a list of my favourite book nooks by category, since I am a bookworm, which makes sense. I've started with pre-loved as I have always preferred buying vintage, quality and affordable books. Here's my favourite 5 of pre-loved book nooks in Klang Valley for your easy reference. Please check out the respective links for more details.

P/S: My apologies if I had misinterpreted their respective visions.

1. Jumble Station
In support of Parents Without Partners Bhd, a NGO to raise funds for single parents in need.
You can read more of their initiatives here: http://jumblestation1.blogspot.my/
You can also visit their recycling centre here: https://www.facebook.com/jayaone/posts/10152316296016825

2. KL Book Exchange Club
An online Facebook group to sell or buy pre-loved books directly from book lovers alike. You can join the group here to find out more:
https://www.facebook.com/groups/KLBEC/

3. KL Book Exchange
A book swapping initiative with so many books to choose from. Aside from swapping, you can buy it too. They do participate in bazaars or flea markets for easy access. You can follow their Facebook page to be updated of their latest location:
https://www.facebook.com/klbookexchange?fref=ts

4. Itch to Switch
Another book swapping initiative where you can swap with a minimal fee for the books you wanted. Find out more of the swapping mechanism here:
https://www.facebook.com/itchtoswitch?fref=ts

5. Books for Benefit
Books donated to them will be sold with 100% of the money given to local charities. To find out more, check their Facebook page here:
https://www.facebook.com/buymorebooksforgood