This workout comprises of 11 sets. At the end of each set you take 30 seconds rest.
The first set is just one exercise, the second repeats that and adds a second exercise, the third set repeats the last but adds a third exercise and so on. Eventually in set 6, you’ll complete 6 exercises in a row and take your 30 seconds rest.
Then for in each set from 7 to 11 you work your way back down by simply taking away the final exercise from the previous set.