A senior engineering student would like to have a copy of calculus (like Stewart or Thomas-Finney) handy to look up from time to time while solving an engineering or physics problem. My question is, can the same be said about a freshman level physics text, like Halliday-Resnick or Young-Freedman? Do advanced physics students need look up something from their copy of freshman text, even if they have other specialized upper division texts like Griffiths, Taylor, etc? Another related question: Is having a non-calculus physics text (again like HR or YF) good when you can do calculus based physics? You may not need it but it's good to look at same problem from a calculus and a non-calculus POV (so it could help you water-down your own problem to non-calculus level, if you're explaining something to another beginner student)? Another related question: In math you have (and sometimes need) "all of pre-college math in one book" in the form of Lang Basic Mathematics or Simmons Precalculus in a Nutshell. That combined with Stewart Calculus can act as "all of pre-sophomore math". Can HR or YF act as such a "all of pre-sophomore physics" reference? (although I've heard they're overexplained for an advanced student so I'd prefer a comprehensive text that is somewhat terse as well; less talk, more problems; because for talk you can always read the Feynman lectures) I have tried to explain myself as much as possible; hopefully I can get some advice. Thanks in advance.