Try removing the -h option, then you might be able to get a better idea. ls -la is showing you both the . and the above directory .., and totalling the 2.
Here's what I get (I use 4k blocks):
Code:
mkdir word
[masterc@masterc ~]$ cd word/
[masterc@masterc word]$ ls -lha
total 8.0K
drwxrwxr-x 2 masterc masterc 4.0K Apr 10 02:22 .
drwxr-xr-x 68 masterc masterc 4.0K Apr 10 02:22 ..
[masterc@masterc word]$ ls -la
total 8
drwxrwxr-x 2 masterc masterc 4096 Apr 10 02:22 .
drwxr-xr-x 68 masterc masterc 4096 Apr 10 02:22 ..
[masterc@masterc word]$ du -h
4.0K .
[masterc@masterc word]$ du
4 .
[masterc@masterc word]$
HTH
Cool