The Witch's Handbook is a 64 page softcover book from Green Ronin, priced at the unfortunately standard $14.95 (I got mine used for $10). It's part of their master class series, which introduces a new core class to d20. As you probably can guess from the name, this introduces the Witch, which is one of my favorites. There are several other versions of a witch class for d20, including 2 other stand alone Witch books (The Quintessential Witch from Mongoose and The Way of the Witch from Citizen Games).
I had been very wary of this book because I really really hated one of their other Master Class books (The Assassin), but it looked okay and the price was right. And as it turns out, this has none of the problems that book had, and is actually very good (which in retrospect is perhaps obvious, since the author of this book, Steve Kenson, is one of the best writers in the field , and the ones of the Assassin book are well, not).
The book is divided up into 4 chapters.
The first chapter is the largest, around 25 pages, and deals with classes. It starts by introducing the core Witch Class itself. It has a weak base attack bonus progression, a spell progression like a Sorcerer (max of 6 in each level at 20th level), and gets 4 skill points per level. It has weak saves in fortitude and reflexes, and strong in will, like a sorcerer or wizard. For special abilities, over the range of 20 levels, they get a familiar, 4 bonus feats, timeless body (like a monk) and "A Thousand Faces" which basically lets them cast alter self. They get a d4 for hit dice. It doesn't need to prepare spells, just like a sorcerer.
So, the class is pretty much like a sorcerer. But the spell list is quite a bit weaker, and very short (for instance, there are only six 8th level spells available). While it does add in healing spells, most of the list is charm and sleep spells. So, it's perhaps a bit weaker in power than a wizard in sorcerer (though it does get a couple more skill points).
A few new prestige classes are introduced. These are quite interesting. The first is an Infernal Witch. While that could describe more than one of my ex-girlfriends, it's a witch (or sorcerer, apparently) who makes a deal with a devil or demon lord. It's basically a fairly standard arcane spell caster class with lots of evil special powers.
Then there's the shaper, which is a witch (or druid) that specializes in shape changing.
Next is the Witch Hag, which is a pretty accurate description of the last woman I dated. This mostly seems suited for NPCs or villains. As the name implies it's more or less the classic 'hag', though much like that woman, they start out normal, but gradually turn into one.
The last witch prestige class is the Witch Priestess. It's sort of a Wiccan style witch, though it's not really much different than the core witch (more powers, but basically the same ones).
Lastly is the Witch's Champion. It's for non-witches, but sort of a protector of them. (A similar concept seems to be found in all the other witch books, too, though I've never seen it in real life or in history. I think it's from the Wheel of Time...)
A really nice touch is that each class has example characters, for differing power levels. This is very very useful if you need an NPC in a hurry. A whole NPC table (from levels 1 to 20) would have been nicer, but this is still pretty handy.
The chapter ends with some advice on how to fit witches into your game/campaign. This includes some info on putting them in Freeport
The second chapter is on skills & feats. More detail on the use of the Heal skill, as well as Knowledge (Nature) and a tiny bit on Herbalism. Also introduced is Profession (Fortune Telling). There are a few new feats. It's a pretty short chapters.
Chapter Three is on equipment and such. Detailed are various herbs (not as comprehensive as the Mongoose book or the herbalism section of Occult Lore, but decent), some alchemical medicinal stuff you don't usually see in RPG books but very much a part of every day life - tooth care and contraceptives. There are 3 pages of new potions. And lots of new witch related magic items, cauldrons, staves, etc.
The last chapter is on spells. It starts off with a bit on ritual magic. Basically, it just gives the spell being cast bonus levels. Basically just a cut-rate version of the rules from Relics and Rituals (I'm suprised it didn't include "True Rituals" from that book for witches, which are more or less super-spells that take a lot of people to cast ).
There are several new spells. Most of them are actually upgraded versions of existing spells. Eternal Sleep, Eternal Charm, Massmorph. There are a few others, all pretty witchy. I think a couple of the spells involving age are a bit low in terms of level. Steal Youth is only 4th level, yet is pretty powerful - it adds 1d4 years from a target touched, and gives it to the caster. While it takes a while to cast, it still seems a pretty big effect for a low level spell.
Visually, it has a clean, attractive look, with a very readable font for the larger type used in headers. The art isn't bad, but nothing that makes you go "Wow", although some of the witches hairstyles makes you wonder. Each chapter gets a full page art piece, but a lot are comic book-ish looking, and didn't do much for me.
There's also an index, something I always find useful.
Ultimately, when you compare it to the Mongoose witch book, I think this comes up a bit short. It's half the size, yet only $5 cheaper. I also think the Mongoose Witch is closer to the normal core classes in terms of power. Although this is more flexible than the Mongoose witch (thanks to the on the fly casting like a sorcerer), I also think it's is a bit weak compared to core classes (I think this witch is too much like a weak druid, or sorcerer with a wussy spell list - other than the age spells, anyway. I would probably compensate by giving them a d6 or even d8 for hit dice). On the other hand, some feel the Mongoose witch isn't right, because it can cast fireballs*, so if you feel like that, this could very well be the style of witch for you.
All in all, it's a very solid product. Even at full price, it's easily worth the money.
B+
(I made a table of comparisons between this and the Mongoose Witch book, but since this doesn't support HTML, you're out of luck

, you should have read it on my web site)
*though in the Wizard of Oz, one of the Wicked Witchs did in fact throw fireballs, and is perhaps where the fireball spell came from. Neither book has flying monkeys, thankfully (I hate those things).