This is a useful little extract from the series Your First Sampler Quilt that Valerie hosted.
The four-patch is a simple little unit but the middle still needs to look good.
This has been extracted from the series Your First Sampler Quilt which is available on the site.
Valerie also gives some more useful tips on precision patchwork in her workshop: Precison Piecing
and Jennie & Valerie discuss the merits of seams open or closed in Seams Common Sense
which you might also find helpful.