The amino acids have single and three letter codes and these are worth learning for your degree.
The single letter amino acid codes are fairly easy to remember. In eleven cases it is just the first letter.
And in 9 cases it not:
For those of you who wish to test their knowledge of the single letter amino acid codes I have put together a little test (it gives random questions so you can try it as many times as you like), which can be found on the teaching website https://teaching.ncl.ac.uk/bms