Good afternoon /sci/, I'm looking for an introduction to mathematical abstraction- specifically something that offers methodologies to aid in grasping abstract concepts. I'm a humble humanities student at a community college with a math background that stops at pre-calculus and trigonometry. So something rather simple would be ideal but I think I can handle anything so long as it's written for an undergrad audience.

My apologies if book recs are not allowed here, but I thought I'd try /sci/ first before the tryhards at /lit/ give me the name of some obscure 3rd century natural philosopher talking about the necessity of celestial harmony between Mind and Nature or some such sophistry.