i am a semi-beginner in the digital photo world, and i'm looking to perfect my exposure technique. i was wondering if anyone had any good book ideas about exposure, preferably ones that don't focus too much on what shutter speed/aperture/iso is (i've read quite a few books that only focus on the basics), but one that focuses on certain example photos from the photographer and detailed descriptions of how he/she took them. please let me know if you have any good recommendations!