good presentation

32 mins 15 secs

31 mins 24 secs

34 mins 30 secs

34 mins 36 secs

35 mins 52 secs

34 mins 57 secs

34 mins 3 secs

29 mins 50 secs

28 mins 7 secs

26 mins 33 secs

11 mins 55 secs

21 mins 28 secs

7 mins

8 mins

23 mins 48 secs

21 mins 25 secs

8 mins 14 secs

25 mins 33 secs

7 mins 33 secs

5 mins 1 sec

8 mins

8 mins

21 mins 31 secs

14 mins 32 secs

25 mins

24 mins 17 secs

28 mins 17 secs

8 mins

15 mins 6 secs

34 mins 26 secs

10 mins 43 secs

21 mins 36 secs

10 mins 43 secs

6 mins 40 secs

20 mins 44 secs

11 mins 13 secs

11 mins 13 secs

11 mins 13 secs

11 mins 13 secs

8 mins