Is there a resource that explains Hebrew words as a compilation of the meaning of the individual Hebrew letters? I understand that the letters have meanings and usually the words are related to the meaning of the letters used to spell the word. There is even a relation to the shape of the letters. Aleph like an ox head, Bet like a house, ABBA the worker of the house = the father. So, is there a Logos resource that covers this or, barring that, a book ?