Bobby Singer's Guide to Hunting is, like John Winchester's Journal, a prequel, and a resource novel. Mostly tells about his adventures and his relationships with other characters. It was written by David Reed, who worked as a script coordinator for Supernatural in seasons five and six.
My name is Bobby Singer. In twenty-four hours I'm gonna lose my memory. So here's everything you need to know.
Monsters, demons, vampires, the boogeyman under your bed: I've seen it, I've hunted it, I've killed it. I'm not the only hunter out here, but there aren't as many as there used to be. Not near as many as there need to be. I've learned everything I can about every damned critter that walks, crawls, or flies, and I'm not gonna let that all be for nothing. I'm not going down without a fight. I'm not letting everything I've learned disappear. So that's what you're holding in your hands—everything I know. Anything that'd be useful for Sam, Dean, and the hunters that come after me.
It's a guide to hunting... it's a guide to me. My last will and testament. Ya idjits.
Mentioned Supernatural Beings
In chronological order:
- Horseman (Death)
- Boogiemans (described as Boogeymans)
- Special Child (Sam)
- Unknown Salt-sucking Critters
- Crossroad Demons (described as Red-eyed Demons)
- Orange-eyed Demons
- Samhain (described as a Blue-eyed Demon)
- White-eyed Demons
- Princes of Hell (only Azazel; described as a Yellow-eyed Demon)
- Croatoan Virus
- Regular Angels
- Deities (Oblivion)
- Aliens (referring to a movie)
- Ondines (also described as mermaids)
- Shapeshifters (also appear in a photo)
- Succubis (described as "Hinoenma" in japanese and "Succubus" in english)
- Vengeful Spirits
- Rugarus (described as "Rougarous")
- Living House (also appear in a photo)
- Alphas (Alpha werewolf, skinwalker, wendigo, shapeshifter, ghoul, djinn, wraith)
- Eleanor Visyak's Species
- Hobbits (referring to a movie)
- Psychics (Pamela Barnes)
- Deadly Sin (Gluttony)
- The book is depicted as being written by Bobby Singer to pass on his hunting knowledge as Oblivion drains his memories.
- In the book, Sam speculates that Karen was pregnant at the time of her death which was the memory Bobby held dearest and Oblivion wanted. However, the book is non-canon and contradicted by later events in the series, particularly the events of Death's Door which show them arguing about having children just three days before she died.