Apparently, this user prefers to keep an air of mystery about them.
60 TikZ set node label position more precisely Jun 7 '12
26 How to get only one vertically centered equation number in align environment with two equations Jun 12 '12
8 pgfplots need help with complicated stacked bar chart using selected rows from data table Jul 21 '12
1 ybar stacked plot with negative coordinates Aug 17 '12