Hi

I am playing divine divinity and have noticed that there is a bar of 0/8 in each skill path (ex: path of warriors lore or any other path). It adds a number when i put 2 skills in whatever skill option there is in that path. (ex: 14 skills in a path mean 6/8). Does this mean that after 20 skills (8/8) you can no longer increase skills in that path ??

That just indicates how many skills you know in each path (regardless of the level of the skill). It doesn't limit how many skills/spells you can boost, and doesn't give a bonus if you learn each of the skills in a particular group.