Trick, Photography Book - It shows aperture because at some apertures some things are in focus and some arent - Now YOU Can Create Mind-Blowing Artistic Images With Top Secret Photography Tutorials With Step-By-Step Instructions!
Manual Exposure Cheatsheet - Master manual photography with your digital SLR. We figured it was only appropriate for our first post to give something back. This exposure cheat sheet covers the basics of mastering manual exposure with a SLR camera.
To be comfortable shooting manual you will need to know what your necessary adjustments are. Though these settings are all numeric, there isn't some insane math equation that you need to do to find out what to dial