I don't think there is any engineer reading my blog except myself, but I will post this anyway.
I did a little research online to find a reliable and modern book about gas turbines and I decided that Gas Turbine Theory by prof. H.I.H. Saravanamuttoo, who seems to be a celebrity of the field and is/was teaching in Carleton University, Ottawa, Canada.
I just spen €75 for the fifth edition which was just published at the end of last September.
During a course at university, regarding ethic in environimental engineering, the teacher told us that in Italy we had been out of date for so long in the field because it took 5 years to translate the most important books related to ethic/environiment.
Being able to read in English well enough to understand such a book like the one of prof. Saravanamuttoo is such a privilege and this is the reason why I took myself to improve my English throughout the university. A lot of my classmates are having troubles with their English because we just took an English course in the freshman year.
I must confess that a lot of professionals I meet have a rough English, or at least an English clearly learnt on the field and with mistakes in grammar and syntax. I myself have the opposite problem: too much learning and studying written English, and so little practice!