There are a few pretty good books for under $5 that you can purchase to fill your e-reader.
Taking his cues from 1 Corinthians Mark Dever gives us 12 Challenges Churches Face:
Only 66 pages but a practical guide to biblical preaching. Alistair Begg’s Preaching for God’s glory:
More from Dever. This one is a classic that every one concerned with the church ought to read, 9 Marks of a Healthy Church:
I must confess I have never read this one. But I have read and respected Voddie Baucham’s other work. So I believe his latest offering The Ever-Loving Truth would be worth a purchase:
I’m reading through this book right now. It’s a fun, simple, and helpful read so far. You might enjoy it to. Robert’s Rules of Writing:
Thanks! These are great suggestions. ~Lizette