"Rena is a polished, engaging speaker whose expertise on the subject of speech lends her instant credibility. Her presentation gives listeners the tools to speak clearly and confidently in settings large and small."

"Your time with us was engaging and I was SO motivated by you and your energy. I believe what you did was the best I've seen since I've been involved with OJT. Your ability to move them (me) to laughter while you encourage self ... Read More"

 "You said in Breath in Action, 'authentic…breathing increases our ability to handle a higher charge of energy…' Thanks to you, we are working with a high charge of energy at Texas Wesleyan, and we can handle it! Thank you so very ... Read More "

"As the former Speaker Pro Tempore of the Oklahoma House of Representatives, I quickly learned my voice had to have authority, but also authenticity, which can be a delicate balance.  I am familiar with Rena Cook’s work ... Read More"

"Rena's methods are truly life-changing and go far beyond basic vocal training. Whether coaching groups in a corporate setting or working with individuals one-on-one, Rena is able to transform a person's ability to communicate ... Read More"