--- product_id: 147152674 title: "Ninety Percent Mental: An All-Star Player Turned Mental Skills Coach Reveals the Hidden Game of Baseball" price: "78.39 DT" currency: TND in_stock: true reviews_count: 13 url: https://www.desertcart.tn/products/147152674-ninety-percent-mental-an-all-star-player-turned-mental-skills store_origin: TN region: Tunisia --- # Ninety Percent Mental: An All-Star Player Turned Mental Skills Coach Reveals the Hidden Game of Baseball **Price:** 78.39 DT **Availability:** ✅ In Stock ## Quick Answers - **What is this?** Ninety Percent Mental: An All-Star Player Turned Mental Skills Coach Reveals the Hidden Game of Baseball - **How much does it cost?** 78.39 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/147152674-ninety-percent-mental-an-all-star-player-turned-mental-skills) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Former Major League pitcher and mental skills coach for two of baseball's legendary franchises (the Boston Red Sox and San Francisco Giants) Bob Tewksbury takes fans inside the psychology of baseball. In Ninety Percent Mental , Bob Tewksbury shows readers a side of the game only he can provide, given his singular background as both a longtime MLB pitcher and a mental skills coach for two of the sport's most fabled franchises, the Boston Red Sox and San Francisco Giants. Fans watching the game on television or even at the stadium don't have access to the mind games a pitcher must play in order to get through an at-bat, an inning, a game. Tewksbury explores the fascinating psychology behind baseball, such as how players use techniques of imagery, self-awareness, and strategic thinking to maximize performance, and how a pitcher's strategy changes throughout a game. He also offers an in-depth look into some of baseball's most monumental moments and intimate anecdotes from a "who's who" of the game, including legendary players who Tewksbury played with and against (such as Mark McGwire, Craig Biggio, and Greg Maddux), game-changing managers and executives (Joe Torre, Bruce Bochy, Brian Sabean), and current star players (Jon Lester, Anthony Rizzo, Andrew Miller, Rich Hill). With Tewksbury's esoteric knowledge as a thinking-fan's player and his expertise as a "baseball whisperer", this entertaining book is perfect for any fan who wants to see the game in a way he or she has never seen it before. Ninety Percent Mental will deliver an unprecedented look at the mound games and mind games of Major League Baseball. Review: Great for Anyone in the Great Game of Baseball - Great book by a great person having a tremendous influence on the baseball world. As someone who works in the sport psychology world and loves baseball, I've read just about everything there is on the topic. Although I looked forward to the book, it made me wonder what Tewks would do for his approach to bring something new to the table. Well, he found a great way to do so with his writing style and format of the book. Tewks weaves the story of his baseball career with that of his career as a mental skills coach in a way that offers really interesting stories and provides valuable content regardless of whether you're reading as a player or coach. He is very open in giving some of his signature techniques with players but making it very clear the relationships you build trump any skill- it's about the people. The book is well written and easy to read. No matter your existing knowledge of the mental side, I think you'll find it both enjoyable and valuable. Well done by Tewks! Review: Loved the mental nuggets and great stories! - Entertaining read from beginning to end, but the real value for me was found in the mental approach and preparation to being a competitor. Both of my teenage kids play 2 sports each and I coach them regularly. This book has given me great insight into leading them both through slumps and performance struggles. It has given me a “language” to communicate with as a coach and parent. It’s not just about talent or even training. Thanks Bob for giving us a glimpse into your life and the world of pro baseball. ## Technical Specifications | Specification | Value | |---------------|-------| | Best Sellers Rank | #175,967 in Books ( See Top 100 in Books ) #16 in Baseball Coaching (Books) #86 in Baseball (Books) #138 in Baseball Biographies (Books) | | Customer Reviews | 4.5 out of 5 stars 383 Reviews | ## Images ![Ninety Percent Mental: An All-Star Player Turned Mental Skills Coach Reveals the Hidden Game of Baseball - Image 1](https://m.media-amazon.com/images/I/61iqeoFNFYL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great for Anyone in the Great Game of Baseball *by B***H on April 1, 2018* Great book by a great person having a tremendous influence on the baseball world. As someone who works in the sport psychology world and loves baseball, I've read just about everything there is on the topic. Although I looked forward to the book, it made me wonder what Tewks would do for his approach to bring something new to the table. Well, he found a great way to do so with his writing style and format of the book. Tewks weaves the story of his baseball career with that of his career as a mental skills coach in a way that offers really interesting stories and provides valuable content regardless of whether you're reading as a player or coach. He is very open in giving some of his signature techniques with players but making it very clear the relationships you build trump any skill- it's about the people. The book is well written and easy to read. No matter your existing knowledge of the mental side, I think you'll find it both enjoyable and valuable. Well done by Tewks! ### ⭐⭐⭐⭐⭐ Loved the mental nuggets and great stories! *by J***D on July 1, 2019* Entertaining read from beginning to end, but the real value for me was found in the mental approach and preparation to being a competitor. Both of my teenage kids play 2 sports each and I coach them regularly. This book has given me great insight into leading them both through slumps and performance struggles. It has given me a “language” to communicate with as a coach and parent. It’s not just about talent or even training. Thanks Bob for giving us a glimpse into your life and the world of pro baseball. ### ⭐⭐⭐⭐ Good Baseball Psychology Book *by S***Z on October 10, 2018* The author has worked as a baseball psychologist. Though most baseball players would probably frown on seeing a psychologist, most would agree that base is a large part mental. I found it very interesting. The author also played in the major leagues, which makes even more credible. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/147152674-ninety-percent-mental-an-all-star-player-turned-mental-skills](https://www.desertcart.tn/products/147152674-ninety-percent-mental-an-all-star-player-turned-mental-skills) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-18*