Hello Lin and welcome to the Club. “MASERATI Italian Luxury and Flair” is a very readable book by the knowledgeable Martin Buckley. I think its available on ebay (and maybe elsewhere) for just under £60. Enjoy!
According to their website, Classic Valvemaster Plus contains an ethanol stabiliser enabling the use of E5 and E10 petrol. Be interested to hear what Maserati has to say on the subject! We should be using Super E5 grade petrol in our Maseratis anyway.