Mix letters in the words speed reading training. Adjust reading speed for maximum enjoyment. Ability to concentrate on the problem is one of the constituent parts of the successful mental work. Mix letters in the words speed reading training. Speed Reading with Improved comprehension. Read any average 240 page book in 2-3 hours, combining high speed voice with text. Adjust speed for maximum enjoyment. Ideal for high school, college and grad school students and adults of all ages reading up to 300-350 wpm. If you already read faster than this speed, you will want to use the next tool.