Thoughts for Young Men by J.C. Ryle is another of those must have books when raising boys.
It is relatively short but do not let that fool you. He says in one sentence what modern authors say in paragraphs.
His style is readable, plain and straight to the point. I recommend getting the hard copy book with study guide, one
for each child and one for yourself.
If you only ever got through the five dangers to young men the book would be an invaluable aid in instructing young men!