I want to learn what Islam is in a stepwise manner to develop the love for Allah, his messenger, the Ahlulbayt & others whom we are expected to love.
Please advise me which books to refer in order to know about Islam, the family tree of our Rasool and the Akhlaaq of Ahlul bayt in a stepwise manner.

There are few books written by maulana saeed Akhtar Rizvi sb
God of Islam
Need of religion
Mohammad saw is the last prophet
Imamat , Islam, The family life of Islam,and inner voice
All books are informative and simple.