Firstly, thank you so much for your answer. Often times people read books about the Holocaust or a biography and within the chapter the writer will bring in a D’var Torah related to the chapter of the book. I just want to be clear - when coming across these types of writings within a book - should one skip that area? stop reading the book in the bathroom altogether? Please clarify. Also, when you write " If though the name of G-d is written out fully, then it is forbidden." do you mean Hashem or do you mean Yud Key Vav...?
Shalom, A pleasure to be of some help. If in a history book, for example, which is generally written as a secular book, then if, by the way, the writer mentions a Torah idea, you should skip over reading that part of the book in the bathroom. If the book is written as a Torah approach to history, or a religious biography (such as many Artscroll books), then the main essence of the book is to teach Torah ideas – and as such they should not be taken into the bathroom. [I have in mind, for example, the Artscroll biography of Rav Moshe Feinstein zt"l, which is full of quotes from the Torah and Gemara, and was written with the intent that one should learn Torah from it. This should not be taken into the bathroom. On the other hand, magazines, such as Mishpacha, which are written mainly for entertainment and information, but may include a by the way Torah thought, may be taken into the bathroom. The Torah thoughts should be skipped over and not read in the bathroom.] By the name of G-d I am referring to Yud Key Vav... Blessings.