Once you know what they are, those four criteria of a bestseller are straightforward to implement.
In addition, these four components are not necessary for a successful book. Two out of the four is sufficient. But if you have them all, you're sitting well.
These are them, by the way.
1. Fantastic Idea.
Even without a completely established concept, it's possible to acquire a book contract if you have a large enough platform.
Having a half-baked notion for a book is far more challenging. Having to deal with it adds stress and uncertainty to the writing process.
To avoid wasting time and effort, it is best to do some preliminary work on your book's concept before you write the whole thing. You might also seek the assistance of an expert to define your concept.
It goes without saying that you need a solid concept if your platform is limited.
2. Brilliant work of writing, number 
Strong prose will always find an audience. It's less common these days. But even works written by unknown writers may find an audience. It's potent enough to do that.
Even if you aren't a great writer, you can still apply. A ghostwriter or collaborator might be hired to do the writing for you.
The alternative is to hire a professional developmental editor to improve the coherence of your narrative at the level of individual paragraphs and phrases.
Putting money into these areas is a wise move if you want a high-quality book completed more quickly than you could on your own. Imagine them as smart investments.
3. Excellent support structure
Even if an author has a fantastic concept and can write well, many major publishing houses will not take a chance on them if they have no platform or a very limited one (numbers generally under 10K followers and no celebrity backing).
Having a promising platform isn't always enough to seal the sale. They want to see engagement today.
According to cheapest book printing, While some publishers may provide fewer advances in exchange for risking everything on the possibility of a platform, others may not hesitate to take the plunge.
4. Excellent timing
Time is always a factor of uncertainty. We don’t know what’s on publishers’ lists or what’s upcoming from movie houses and other media in your topic area. No one can predict the future of society or politics.
For instance, Hillbilly Elegy, J.D. Vance's book about his upbringing in Appalachia, was heavily promoted in the run-up to the 2016 election. What was happening in the rest of the country was a mystery, and Vance's book provided some answers. His book spent a considerable amount of time at the top of the bestseller lists.
So timing is essential, but not something you can control.
Still, understanding about factors that are likely to make a best-seller helps you not only to design a fantastic book but also to think strategically about it.