We wouldn't really say "from Monday" or " from tomorrow" unless we're talking about a precise range. Like: "From Monday until Wednesday, I'll be out of the office." I'd probably say: "Tomorrow, I plan to start reading a new book." You're going to initiate the process of reading the book. Or, more casually: "Tomorrow, I'm gonna start reading a new book." Or the more formal way: "Tomorrow, I'm going to start reading a new book." If you want to add more context you can add: "I usually try to read one book a month."

Yes, you can say "From tomorrow" or "From Monday," and both are correct, but there are slight differences in usage: * "From tomorrow": This is perfectly fine and refers to the day after today. * Example: "From tomorrow, I plan to read a new book." * "From Monday": This is also correct, but it’s used if you're referring to a specific day of the week (in this case, Monday). * Example: "From Monday, I plan to read a new book." Both work, so it's a matter of which sounds better to you depending on when you're planning to start.

"Starting tomorrow (or Monday), I plan to read a new book and finish it by the end of the month." Tip: - "From tomorrow" is grammatically correct but not the most natural choice in this context. "Starting tomorrow" or "Beginning tomorrow" sounds more natural when talking about future plans. - "By the end of this month" is correct, but you can simplify it to "by the end of the month"—it’s clear from context which month you mean.