The first sentences don't mention about the person who does it, and the second ones should have the person who does that. 本がおいてある。(There is a book.) 本を置いておく。(There is a book, someone puts a book.) 昼ごはん(ランチ)が作ってある / できている。(The lunch is ready, prerared, cooked.) 昼ごはん(ランチ)を作っておく。(The lunch is ready, prepared, cooked, someone does that.) テレビがついている。(TV is on.) テレビをつけておく。(TV is on, someone turns on.) I hope my English isn't bad and this helps you.

More examples here: http://www.guidetojapanese.org/learn/grammar/teform To sum up: ～ている = enduring state (like continous tense in English) ～てある = resultant state ～ておく = preparation for the future