For those seeking to grasp basic calculus concepts, several recommended texts include "Calculus for Dummies," George F. Simmons' "Calculus with Analytic Geometry," and Thomas/Finnly's "Calculus with Analytical Geometry" (9th edition). Simmons is noted for its clear explanations and extensive problem sets, although some users found the treatment of sequences and series lacking. Serge Lang's "Calculus" is also mentioned, though it has fewer exercises. Morris Kline's book is appreciated for its elementary explanations, while the classic "Stuart Calculus" and Schaum's Outline Series are suggested for additional examples and practice. Online calculus courses are available for those looking for free resources. It's emphasized that a solid investment of study time is necessary for mastering the subject.