My first encounter with Gieck's pocket books was in Germany, where I bought the book "Gieck, Technische Formelsammlung". Later when I returned home, I purchased the English Edition of the 1974 "Gieck Engineering Formulas". This new edition is very much extended, taking in more areas. One must remember that this pocket book is a collection of formulas only. It is a reminder or reference source. Some previous knowledge is required. It is concise and very informative. It is a book to keep nearby at all times.