“Practical Celestial Navigation is an excellent text for classroom instruction. We have been using it in our celestial navigation courses at Mystic Seaport since it was first published in 1979. It has many clear, helpful diagrams and an abundance of practice problems. Correct answers, which are supplied for checking the practice problems, combined with the many sample problems, make this book a good choice for self-instruction by the diligent student. The text is designed for use with sight reduction tables, H.O. 229, Volume 3.”

– Don Treworgy, Mystic Seaport Museum Planetarium Supervisor

“A first-class piece of work. You have the rare gift of being able to say something simply and of taking the simple things one at a time so the development of the total concept seems to grow."

– Practical Sailor

“I appreciate the amount of work that must go into a book of this type and the difficulty in deciding what to include—particularly when it may be used by diverse groups ranging from the novice to the experienced navigator—each with a unique viewpoint. With this in mind, I must commend you for a fine job. I think you have maintained a nice balance of material and the format is excellent.”

– William H. Knapp, teacher of navigation and professional engineer

“Practical Celestial Navigation is certainly one of the best illustrated books of its kind.”

– Forrest W. Gibson, Southwest Instrument Co.