I had been searching for this book since my undergraduate days when I studied nuclear physics, but was unable to have a chance until I entered a Western university a few years later. It did not disappoint me after the long-time waiting, not at all.
Putting the exciting physics stories aside, this book is also an excellent "teaching book" for the young, ambitious people on how to deal with extremely difficult situations, how to make key decisions in one's life and career, no matter you are a high school student or a physicist -- so serious stuff !
It is a pity Gamow didn't get Nobel Prize (he deserves it), otherwise, this little treasure book would have been more popular, just like his Mr.Tompkins books. Now, you most likely find it only in a university library --- in the phyics department.