nice for working on problems. goes beyond ipho level especially in optics. i suggest you come around in the discord server to know more.

dont open this until you havent tried enough.

my personal fav :p

dont look until you have tried enough

another good physics introductory book. my friend has written IPhO and got HM just by doing this book.

dont look until you have tried enough. on a side note, you can use this to become more familiar with calculus problems since the problems which use calculus are marked in the exersises.