I have never read any books on lottery methods. I just love numbers so I designed my own charts a few years back.
If it's a Pick 5 game with a number range of, say, 1-39, I have about 3 "must have" charts. The primary one has 1-39 at top, broken up into columns of
1, 2, 3, 4, 5 6, 7, 8, 9, 10 11, 12, 13, 14, 15
and so on. I also have a linear chart like this broken up into columns of 1-9, 10-19, 20-29, 30-39. That gives me a quick glance at knowing what major sections might be expecting some action.
And yes, I do use colors in all my charts, as I have Synesthesia and that helps me remember my categories.
Another chart I use is just what I call "Two of a Kind". Goes by ending digit:
1, 11, 21, 31 2, 12, 22, 32 3, 13, 23, 33
etc.
So I track all winning numbers, each game, and whenever something like 12 and 22 comes up, as an example, I highlight that section. This kind of chart has been very helpful.
A general guideline I use in all Pick 5 games is: LOOK AT THE LAST 3 GAMES.
Usually in each new drawing of winning numbers, about 3 of those will be numbers from the past 3 games.
Of course, this is just an "average", just a guideline. It may be only 2 numbers. It may be 4 numbers. Depends on the number range in the game. For a big game like Megamillions or Powerball, I take a close look at the past 3 games but go 3 out beyond that. Just saying, in general, the Past 3 Games is important to look at.