The ABC Monitoring worksheet is for identifying beliefs that play a role in producing our emotional and behavioural reactions to situations. Triggering situations are recorded in the “A” column, and reactions in the “C” column. Thoughts and beliefs that produced those reactions are then recorded in the “B” column. It is useful to use this tool in conjunction with a list of common cognitive distortions so that unhelpful beliefs can be categorised according to relevant cognitive distortions.