Brian Tracy is one of my long-term favorites too. I also like Stephen Covey, Denis Waitley, Jim Rohn, and Earl Nightingale. Tony Robbins is good too, but his material includes a lot of rah-rah fluff and not nearly as much actionable substance as someone like Brian Tracy, who packs in the good ideas more densely and concisely. Tony is better at selling his ideas to convince you they'll work and you may feel better while listening, but my results were better when I applied ideas from more straightforward authors/speakers. When I first encountered Tony's material, I learned to feel happy and excited while I was dead broke, and I remained dead broke. Other people's material didn't get me as pumped, but they helped me make realistic changes so I wasn't broke anymore. Personally I'd rather have a great result than a great feeling about a lousy result. Tony Robbins, however, is a much better speaker than most -- and very motivational.
In truth I find some value in almost everyone. Sometimes a good idea can come from an unlikely source. For example, Marshall Sylver is a Las Vegas stage hypnotist who's been known to rack up a lot of gambling debt around town. Many people think he's a scammer, asking, "If he can control his mind with hypnosis, why did he gamble away all his money?" Erin and I saw his show many years ago, which was really fun. I read his book
Passion, Profit, and Power and absolutely hated his attitude and style, but he did have a few good ideas in there. One simple idea I learned from him is that a great way to interrupt an argument you're having with someone is to stop and ask, "Are you ready to get back to love?" You won't always get a yes answer, but it immediately raises the awareness of people in the conversation by acknowledge they're behaving in an unloving manner, and being right no longer seems like such a big deal.
My recommendations for specific authors/books are always available here:
http://www.stevepavlina.com/personal...ment-books.htm