I am not willing to trade on a daily basis, but I know for example about the 2017 crash.
Is there a reputable book, written by a reputable author, on how to know when to sell? It's like if a crypto goes 50x in one year there is a chance at some point that there will be a crash. I need to know APPROXIMATELY when I should sell.
Thank you!
There are many good books out there which you can read to understand technical analysis and then apply that knowledge on the charts and find out an approximate exit point.
But nobody can accurately predict the price of a crash.
Learning more about technical analysis and keeping an eye on the market and news will give you a good understanding of when to buy and sell.
You can follow the trend and get your profits and cash out on trend reversal as well.