How to Tie a 4 Strand Paracord Braid with a Core and Buckle by welchjr.(Picture tutorials)
More tutorials from dqmc07 here:
https://www.youtube.com/user/dqmc07/videos
From T.J. Potter page:
Twist braid
3-strand braid
4-strand round braid
4-strand flat braid #1
4-strand flat braid #2
5-strand flat braid #1
5-strand flat braid #2
6-strand flat braid
6-strand round braid #1
6-strand round braid #2
8-strand round/square braid