This is one everyone can join in on. What are the most common errors you see people making about SFF books? Not spelling mistakes or things of that nature, but more assumptions that people make and trivia that commentators may not be aware of? Here's a few to get started:
1. It's Otherland, not Otherworld.
Tad Williams' four-volume Otherland series is a fine 'rationalised fantasy', with the fantasy elements taking place in a VR simulation in late 21st Century South Africa. However, everyone and their uncle seems to get the name wrong, calling it Otherworld. To be honest, this is probably a more accurate title, but it's not the right one. Yet I've seen bloggers, magazines and even hardcore Williams fans make this mistake as well.
2. It's Steven Erikson, not Steve Erickson.
The author of the Malazan series is called Steven Erikson, not Steven Erickson. This is probably the single most common mistake I encounter on forums, and used to make it myself. You may say, so what? But in this case the distinction is important, as there is also an accomplished, award-winning speculative fiction author called Steve Erickson who has written books such as Arc d'X and Zeroville and championed a young Neil Gaiman during his Sandman days (he wrote the introduction to one of the graphic nove collections). Of course, to add to the confusion, Malazan Steve's real name is actually Steve Rune Lundin, with Erikson as a pen-name (according to rumour, adopted because it puts his and Ian Esslemont's Malazan books next to one another on the shelf). In a similar vein, Frederik Pohl gets renamed 'Frederick' quite a bit as well.
3. Nights of Villjamur isn't Mark Newton's debut novel.
Mark seems rather embarrassed by it, but a year before Nights of Villjamur came out, British small press Pendragon Publishing put out a book by him called The Reef. It's a proper novel, 310 pages in length, and is set in the same world as his Legends of the Red Sun series (albeit thousands of years removed in a remote part of the world). More importantly, despite Mark's claims, it's actually pretty good.
4. Warhammer & 40K predate WarCraft and StarCraft.
Penny Arcade put it best, but it's not uncommon to see people making this mistake even today: Dawn of War ripped off StarCraft, Warhammer Online ripped off World of WarCraft, the Tyranids are totally repainted Zerg and so on. You know, ignoring the fact that Warhammer debuted in 1983 (eleven years before WarCraft: Orcs and Humans) and Warhammer 40,000 in 1987 (eleven years before StarCraft). And that Blizzard reportedly asked Games Workshop to do official Warhammer computer games in the early 1990s and were turned down, so had to create their own IP. Not knocking Blizzard here (StarCraft II will be my first day-of-release PC game purchase in almost three years) who make fantastic games, but the idea that Games Workshop stole anything from them is chronologically impossible.
5. The Wolfman predates Twilight.
By about sixty-five years. Seriously.
6. The Halo is more like a Culture Orbital than the Ringworld.
The titular construct from Bungie's X-Box games is actually much more like an Orbital from Iain M. Banks' Culture novels than Larry Niven's Ringworld (from his classic 1970 novel of the same name). They pretty much all look the same, but famously Niven's construction is too big to actually work in accordance with the laws of physics, and increasingly ridiculous explanations are offered in the succeeding books as to how to stabilise the structure, including fitting rocket engines the size of Jupiter to it. The Culture Orbitals are 'merely' 3 million km across and much more stable. Oddly, it's the computer game which makes the most sense, with the Halos only being about 10,000 km across. The biggest similarity between the two is that both Orbitals and Halos orbit a star (the latter in conjunction with supermassive gas giants), whilst the Ringworld completely encloses it. All of that said, Microsoft did give Niven a complimentary X-Box and copy of the game, acknowledging the visual similarity of the design.
7. A Song of Ice and Fire, not Fire and Ice
I thought we'd seen the back of this one many years ago, but the recent announcement of the HBO TV series has seen a whole truckload of coverage of the books and the series in more mainstream outlets. Thus we are now seeing stories about A Song of Fire and Ice, an SF series set on the planet Westeros where the seasons last for forty years, or some other butchering of title and premise. Less of a criticism of SF fans as mainstream journalists who can't even be bothered to look at Wikipedia for five minutes.
8. Chasm City is a Revelation Space 'novel', but not part of the Revelation Space 'Trilogy'.
Alastair Reynolds' first novel was Revelation Space, the first novel to be published in the Revelation Space Trilogy and also the first book set in the wider Revelation Space setting (note to authors: calling your book, series and wider setting all the same thing can be confusing). It was followed by Chasm City, which was marketed as the follow-up to Revelation Space, but is not Book 2 of the Revelation Space Trilogy, whilst it is the second book in the wider Revelation Space setting and in fact takes place immediately before the events of Revelation Space (its main character has a cameo in Revelation Space, a cameo that would have passed readers by as they had no idea who he was and it was so fleeting it's unlikely they'd remember him when Chasm City came out a year later). At the time of publication this was extremely confusing, although with the distance of ten years, the completion of the trilogy and the arrival of additional books in the same setting, it is now easier to sort things out, but even so there remains some confusion over what book goes where in what order.
9. Gentleman Bastard, not Gentlemen Bastards.
Scott Lynch's fantasy sequence is called The Gentleman Bastard, singular, a reference to the central character of Locke Lamora. The confusion is understandable since Locke's gang is called the Gentlemen Bastards, but the singular title makes more sense given the fate of many of the Bastards and their allies in the first two books.
10. A Dyson Sphere isn't what writers often think it is.
In SF parlance, a Dyson Sphere is a solid shell completely enclosing a star at a distance of roughly 1 AU, providing a living surface billions of times greater than that of a terrestrial planet, powered by absorbing 100% of the energy of the englobed star. Whilst a fantastic and mind-blowing idea, it's not actually what the term means. A 'proper' Dyson Sphere in fact consists of many individual solar collector satellites stationed in orbit around the Sun, absorbing the energy and returning it to Earth for use. Freeman Dyson, the creator of the concept, was not a fan of the 'sold shell' approach, finding it unconvincingly unrealistic. Also, vast numbers of problems have been identified with the 'solid shell' approach, enough to render the idea almost completely unfeasible. But SF writers still use them (and misuse the name) because the idea is cool.
Further suggestions will be gratefully received.