Hi b]Huseynzades[/b][/url],
Starting with algebra seems good, and you can now work with the number theory book as you are done with algebra. Some people like to complete one book after another, whereas others prefer working with concepts and attempting concept-related
OG problems. There is no definitive rule, so you have to choose a path that works for you. You might look at 'The Definitive GMAT Study Plan - 2022 Edition' to have some insights:
Best Wishes!
Thanks a lot! Do you know where I can download this book? As I wont able from the link you shared. Tha k you!