Conversion of carboxylic acid to alcohol
Directly using $\ce{LiAlH4}$ works, but borane is probably a better choice:


  Borane ($\ce{BH3}$) is particularly good for carboxyl groups and permits selective reduction of them in the presence of many other groups (although the reaction with double bonds takes place at about the same rate in ether solvents). For many years, borane was the reagent of choice for this reduction. Borane also reduces carboxylic acid salts. (March 7ed, p 1515)


Clayden 2ed, pp 531-2 also discusses the borane reduction. Here's a small portion of it: