What is the difference between TIC and TICC?
Ok, I had to read the actual text on pages 11 and 12 of the textbook link to understand. 

TIC - In the olden days of mass spectrometers there was a way to measure the ion current from the sample (all masses). This total current is the current of all masses that is being injected into the mass spectrometer. Since the current in detector was also being measured, the spectra is plotted as the ratio of currents vs the mass (scan time).  

TICC - The current from the sample is ignored and the spectra is just plotted as current in the detector vs mass (scan time).