Charlie’s sermon from Sunday 9th July 2017 on prayer is now on-line,
you can listen again here: Why Pray?

Prayer is not about a Transaction
Prayer is not about Technique

Prayer is about our Dependence on God
Prayer is about our Relationship with God
Prayer is about our Awareness of God

As part of the talk Charlie mentioned some websites, here are the links:

www.thykingdomcome.global
www.trypraying.co.uk
www.rochester.anglican.org/ministry/spirituality/the-prayer-pack-/