Best tactics books for ~1400 rated player?

I am struggling to find good books for my level. Advice appreciated!

This is very good: https://www.amazon.com/1001-Chess-Exercises-Beginners-Workbook/dp/9056913972/ref=mp_s_a_1_1?dchild=1&keywords=1001+chess+puzzles&qid=1598154719&sourceid=Mozilla-search&sr=8-1&tag=mozilla-20

At 1400 you're not a beginner. My favorite & most advanced tactics book is Understanding Chess Tactics by Weteschnik. It doesn't cover all tactical themes. Emphasizes those involving the x-ray concept such as pins & discovered attacks, as well as intermediate moves & reloaders. Wording awkward in places because translated from German. Large clear diagrams. He wrote another book which I haven't seen.

My latest tactics book is A to Z Chess Tactics by Huczek. Broader in scope as he tries to cover every theme. Includes my favorite idea overload.  He uses terms attraction & diversion instead of the usual deflection & decoy . But I'm well satisfied with the book. While at home during Covid I've read the whole book, done two-thirds of the 400 exercises, and put many of the positions in a pgn file for my tablet. My only complaint is that the diagrams are a little small, but they are printed quite clearly.

several good books on tactics here, among many others...

Good Chess Books for Beginners and Beyond...

https://www.chess.com/blog/RussBell/good-chess-books-for-beginners-and-beyond