Writing science fiction, fantasy & horror Book

This is an outdated title that sells on brand recognition, if my experience is common. I bought it because of the Writer's Digest brand, but better info can be had online. A set of Dungeon's and Dragon's books might teach you more.

For the $18 price you could get about six used TSR books (like a DMG, PHB, and several MM's) or you could go on RPGnow.com and buy PDF books specific to your needs @ $4 (or less) each.

What it does go into, it doesn't go far enough. I needed to know more about horses than what was here, so I bought Fur and Feather: Volume 1, In the Saddle: Mounts in All their Glory (at RPGNOW.) It has 101 pages of mountastic information for $3.
I recommend this series:
for value. Gary Gygax's: Living Fantasy, Insidae, and Nation Builder, put any of these entry level fantasy "guides" or "references" to shame.