There is a wealth of fantastic resources on the internet I could only have dreamt of when I had my first telescope in 1968.
Phone/table apps
None of the printed maps are much use when observing as they are not detailed enough and they are difficult to use when observing at night. That is where an app comes in. Stellarium is excellent and allows you to identify and locate objects in the sky but my favourite app on a tablet is SkySafari. Alternatives – SkEye is more functional and not as pretty as Stellarium but it is just as powerful and also allows me to target and locate objects with my telescope. That said, the screen size of the tablet makes things a lot easier. SkySafari is a paid for app but the extra functionality and features make it my favourite tablet app when observing and trying to locate objects through the finder and eyepiece.
Star map laptop/desktop applications
My favourite desktop star map is the locally installed version of Stellarium (http://stellarium.org). There is also a web version (https://stellarium-web.org) but the installed version is more flexible and useful for me. Cartes du Ciel (https://www.ap-i.net/skychart/en/start) also gets great reviews.
Hard copy for downloading and printing
I still have my copy of Norton’s Star Atlas (1969 reprint) that uses maps drawn up in 1950 but today I use the excellent Sky Version of this (http://www.deepskywatch.com/deepsky-atlas.html) map printed out on 80+ pages of A4. An alternative which gets good reviews from users is http://www.olle-eriksson.com/night-sky-maps.
How I find difficult objects
Sometimes a dim object like M1 can be difficult to locate as it may take a long time looking through the eyepiece before it becomes visible. Find out how I do this.