I'd also highly recommend the Gordon West ham radio study books, they do an excellent job of teaching you both the answer, and the theory behind the answer.
1. Read through (and understand) West's book. 2. Go to qrz.com and take the practice tests until I could pass with a 95% multiple times in a row, and I had answered every question in the test database correctly at least once. You only need 85% to pass the real exam but I wanted a margin of error.
I passed my tech, general, and extra exams on my first tries. That's the most prepared I've been for a test in decades.
Current requirement is lower. Only 74% (26/35 or 37/50) to pass.
One other thing to know is that the exam questions are split in to sections (35 sections for Tech/General, 50 for Extra) and only one question from each section is selected. This means that you don't need to worry about getting multiple questions from sections you struggle with and dragging down your score.