Son of Doctor Esker's Notebook (The Sequel)

Hint
Small #1	340	643	433	393	359	209	417	406	155	316
Small #2	337	659	437	407	346	171	408	420	168	297
Small #3	300	638	402	415	359	159	394	408	150	283
Medium #1	331	666	401	410	298	145	394	442	150	299
Medium #2	312	643	345	393	297	145	358	440	141	307
Medium #3	318	658	310	389	240	135	341	444	142	275
Large #1	273	724	322	425	210	159	327	456	162	318
Large #2	255	687	282	428	250	154	287	432	150	299
Large #3	239	571	302	327	222	211	317	440	162	358

Return of Doctor Esker's Notebook (The Other Sequel)

Hint
Small #1	129	189	171	71	162	112	80	105	142	111
Small #2	118	182	164	64	170	106	79	102	142	110
Small #3	113	188	169	64	163	95	77	108	133	115
Medium #1	115	180	183	78	172	99	84	110	160	117
Medium #2	114	170	191	75	166	95	93	104	153	102
Medium #3	117	172	189	77	163	85	80	104	134	105
Large #1	118	180	210	83	171	79	78	106	110	126
Large #2	81	160	173	82	186	70	87	100	102	131
Large #3	78	163	164	100	157	73	75	73	73	125

Doctor Esker's Notebook IV: The Moroccan Affair
(The Other Other Sequel)

Hint
Small #1	24	24	30	57	49	54	35	61	74	26
Small #2	24	24	28	53	51	54	33	62	62	26
Small #3	21	23	27	53	48	66	30	60	69	29
Medium #1	22	21	29	60	49	62	32	59	69	30
Medium #2	18	17	28	60	42	49	29	56	73	22
Medium #3	15	17	29	49	40	45	32	52	77	24
Large #1	15	15	30	45	38	53	28	51	55	27
Large #2	13	16	31	35	28	42	24	46	38	25
Large #3	20	21	27	40	28	44	31	45	36	36

The hints are sorted by how much help they give you.
The last Large Hint on each page comes very close to just giving you the solution.