Practically all personal, business and scientific world is driven by computers. From space to deep sea exploration, from artificial intelligence to nanotechnology, all are based on algorithms used to run computers. Now the technologies used to run computers have been seamlessly merged into mobile phones, tablets etc, which we all used every minute. These dictionaries give out precise explanation to the terminologies used in these three cross-related subjects on IT & computer science, science and mathematics These 3 books have been bound together in one volume and offered to readers at an attractive discount. The names of the books and their prices have been shown in brackets: 1) Concise Dictionary of information technology & computer science (Rs195), 2) Concise dictionary of Science (Rs 195), 3) Consice dictionary of mathematics (Rs 195) #v&spublishers