Training Skills

[book-of-loathing]

A few starting guides recommended spending a training point in sense heading, and I've done so. I have more training points to use though, and If I remember back a couple of decades I get more training points each level. I also remember spending these on my necromancer related skills. I don't see guides suggesting which skills to get to what at each level. Maybe I'm overlooking the text or I'm thinking about it wrong.

What do I spend these points on? Thanks!