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View Full Version : [d20a] Non-Magical Skill Training Books



Ashtagon
2010-04-03, 07:10 AM
(nb. In all cases, "skill ranks" refers to the characters skill ranks without the benefit of any ability score modifiers).

Writing

A character who is literate and has at least 5 ranks in a skill can write a book about any skill he knows, written in any language he is literate in. These books are non-magical texts that provide a temporary skill bonus to those who read them.

When you write a book, choose a skill level for the book. This is limited as follows:

* It can be no lower than 2. There is no such thing as a skill level 1 book.
* It can be no higher than your number of skill ranks.
* It can be no higher than your number of skill ranks divided by two (round down), plus your intelligence modifier. This reflects your ability to understand the topic at an academic level (regardless of practical knowledge of the topic).
* It can be no higher than 4 + your Intelligence modifier + your Charisma modifier. This reflects your ability to write in an interesting and engaging manner.

Writing a book requires a number of successful Craft (writing) skill checks equal to the skill level of the book squared. For example, a skill level 4 book requires 16 successful skill checks. The DC of this skill check is 15 + the skill level of the book. Depending on the topic writing the book will require a quiet study, a library, workshop, and/or a training/exercise ground. Each week spent writing typically requires 100 gp in materials.

Reading

In order to benefit from reading a book, a character must be literate in the language of the book, and his skill ranks must be at least equal to the skill level of the book minus four. For example, a character with no ranks in the skill could benefit from a skill level 4 book, but would gain no benefit at all from a skill level 5 book.

To gain the benefit of the book, you must spend one full week studying the book, and practising the techniques described in the book. You should have appropriate facilities available (library, workshop, training field, etc) and the book itself during this period.

On completion of the study period, you gain enough temporary skill ranks to raise your skill ranks to the skill level of the book. Exception: If you previously had no skill ranks, your skill ranks rise to the skill level of the book halved (round down). However, such a character is also now considered trained in that skill.

For example, a character with no skill ranks who read a skill level 2 or skill level 3 book would become trained in that skill with 1 skill rank. If he had instead read a skill level 4 book, he would become trained with 2 skill ranks. A character with 1-3 skill ranks who reads a skill level 4 book would end up with 4 ranks in that skill.

All benefits of reading a studying a book in this fashion expire one month after the study/training period ends. You cannot read several books of increasing difficulty in order to raise your skill ranks to astronomical levels - the benefits of these books do not stack. You could re-study the book later, and then gain the benefits once more.

Gameplay

A skill level 4 book represents a typical undergraduate university text. The author would have been at least 5th level. Assuming he has +2 bonus on his Intelligence and has maxed out his Craft (writing) skill, and all relevant skills are class skills, he has a +10 modifier on his DC 19 Craft (writing) check - 60% chance of success. He can expect to take 26 2/3 weeks to finish writing it.

Another example: Albert Einstein decides to write a treatise on Perform (violin). Albert happens to be a 6th level expert with 9 ranks (maxed out) in Craft (writing), but a mere 2 ranks in Perform (violin), since it is a cross-class skill for him, and he was frequently accused of being unable to count when performing, so he isn't even very good at it. He has 20 Intelligence (+5) and 12 Charisma (+1).

His limiting factor is his actual ranks in Perform (violin) - 2 ranks. He writes a skill level 2 book, which will require 4 successful Craft (writing) skills checks, at DC 17. His Craft (writing) modifier is +14 (after taking his Intelligence into account). He might expect to fail one of those checks, so he sets aside five weeks in his diary to write this book.

He later realises that music isn't his thing, and decides to write a treatise on Knowledge (physics). He's on more solid ground here, as he has 9 ranks in the skill (it's a class skill for him). This time, the limiting rule is 1/2 his skill + his intelligence modifier. he can write a skill level 9 book. This will require a total of 81 successful skill checks, each at DC 24. His +14 skill modifier on Craft (writing) means he has a 55% chance of success on each roll. It's going to take him a little under three years to finish his magnum opus. And no one is going to understand it anyway.

Ashtagon
2010-04-06, 01:47 AM
No comments at all? Too good, or too bland?

The Mentalist
2010-04-06, 11:13 AM
I actually like it. I can't say anything to the balance without a play test but I'll give it a shot.

Debihuman
2010-04-06, 12:14 PM
You also need the appropriate materials--a blank book and ink.

Ashtagon
2010-04-06, 01:25 PM
As for book prices...

The base scribing cost is (skill level)^2 x 100 gp, multiplied by some factor that would depend on the difficulty of the skill check. Judging by teh skill DC numbers in the gameplay paragraphs in the top post, replacing the 100 gp with 160 gp would produce about the right numbers.

If you want the cost of a scribe to copy it, he's going to need a book to write it into. Complete Arcane has rules for this, but a basic book (leather-bound, parchment) will cost 15 gp. The SRD says a scribe (trained hireling) costs 3 sp per day, and if we take 4 weeks as the transcription time (the absolute minimum time any skill book could be written in), that's 8.4 gp. So the literal minimum cost is about 25 gp for a copy of a book. Practically speaking though, books will sell for whatever the market will bear. Books of skill level 4 will be relatively common, and skill level 8+ books will be almost unheard-of.

Cieyrin
2010-04-06, 03:33 PM
Not to mention how long it takes to write one of these, as getting a decent book seems to soon be outweighed by the time and effort involved in making one.

My thoughts on it are about whether you could use one as a reference guide, as in use it as a masterwork tool for the competence bonus, as a Skill Level 4 book seems like the perfect device for most Knowledge skills to brush up on things you may have forgot. Knowledge, at least in my mind, isn't so much just what you know but also what you can remember to know where to look it up.

As a possible extension to this, I'd imagine that a book could be used in such a manner to provide a competence bonus equal to half of the book's skill level, provided you take at least 1 full round to reference it when doing the skill check, to represent drawing and flipping through to the index and then flipping to the appropriate page number.

I could see this applying to skills beyond Knowledges as well, such as Open Lock, as I could easily see a rogue sitting picking a lock with a reference by him/her full of lock schematics so s/he has a better idea of where to put those lockpicks to pop that door open.

Just my 2 coppers. Take as you will.

EDIT: Before I forget, you could also just hire a Wizard apprentice or Magewright to cast Amanuensis to copy a book that much faster, as it's a cantrip from SpC that's designed expressly for this type of task.

Ashtagon
2010-04-06, 03:50 PM
I did specifically intend that a skill book would be relevant for absolutely any skill, not just mental ones - even Climb or Jump could benefit. The one week study/practice period does assume the reader is putting those techniques into practice as well,

The book-writing rules are intended to be realistic. That means that writing takes far longer than any PC should be willing to spend (magic item crafting is normally a more effective use of the time), and the benefit that is granted by such a book is rather small -- a PC-crafted book it will never help any party member in their primary skill. In an actual campaign, I'd expect PCs to buy them off the shelf from specialist book-seller/scribes, or else find them as 'mundane treasure' in a wizard's lab.

I guess technically they could count as masterwork items used when making skill checks. Although I'd say they could only be used I that fashion when you take 20 on the check, and it must be a check in which you could reasonably stop and sit down to read while doing so - no using a book in this fashion for a Climb check. A single round is only six seconds after all - not really enough time to even check through the index properly. I'd say the book must be at least skill level 4 (any less and they aren't comprehensive enough), and it must be a book the character could normally benefit from under the basic rules for the book. That combination would definitely make skill level 4 books the most common. I wouldn't allow for a bigger than a +2 bonus though - otherwise, you might start getting insanely good synergy out of these. Then again, maybe if you have an advanced treatise on the subject, that's entirely reasonable.

I'd totally forgotten about the amanuensis spell of course, which brings the cost of making a book down to 15 gp for the book itself, plus whatever the market will bear.