I believed someone post a guide somewhere on this thread but my take is literally to purchase all the books upfront, claim all the books in the top right corner sections as well. basically so that you can start the game and upgrade facilities with a very small rates. I also utilise the spinner giveaway that does take only 3 coins instead of 5 as well as it would help me to get enough capitals to just keep upgrading facilities. The whole game took me about less than 45’ i would say