Recommended reading 1
If you have David Nunan's Second Language Teaching and Learning (1999), you may like to read chapter 9 on 'Reading'.

Recommended reading 2
If you have David Nunan's Second Language Teaching and Learning (1999), you may like to read chapter 7 on 'Listening'.

Recommended reading 3
If you have David Nunan's Second Language Teaching and Learning (1999), it would be useful to read chapter 10 on 'Writing'.

Recommended reading 4
If you have a copy of Jane Willis's book A Framework for Task-based Learning (1996), I recommend that you now read pages 61-63 ('Writing in the task cycle') and chapter 5 ('Text-based tasks', pages 66-85).